Klinik für Neurologie

Treatments according to OPS

Service Number of cases OPS key Info
Complex differential diagnostic sonography of the vascular system with quantitative evaluation 3.114 3-035
Measurement of the brain waves - EEG 1.443 1-207.0
Computer assisted visualisation of body structures in 3 dimensions - virtual 3D reconstruction technique 1.138 3-994
Measurement of brain waves triggered by targeted stimuli (evoked potentials) 1.032 1-208.8
Treatment of physically or functionally induced disorders of speech, language, the voice or swallowing 1.013 9-320
Examination of the cerebrospinal fluid spaces 755 1-204.2
678 8-981.32
Quantitative analysis of specific values such as organ function or blood flow rate 589 3-993
Measurement of brain waves triggered by targeted stimuli (evoked potentials) 567 1-208.2
Examination of nerve conduction - ENG 484 1-206
437 9-984.7
Ultrasound of the heart (echocardiography) through the oesophagus - TEE 419 3-052
Measurement of brain waves triggered by targeted stimuli (evoked potentials) 382 1-208.4
352 9-984.8
(Neuro-)psychological assessment or establishing the psychosocial background such as financial, occupational and family situation 279 1-901.0
265 8-981.30
Examination of the trachea and the bronchi by endoscopy 232 1-620.00
Measurement of the electrical activity of the muscles - EMG 220 1-205
Measurement of brain waves triggered by targeted stimuli (evoked potentials) 215 1-208.1
Other examination of the function of the nervous system 196 1-20a.30
191 8-981.31
Evaluation of swallowing with the help of a tube-shaped instrument with a camera mounted at the end (endoscope) 159 1-613
Treatment by injecting a medicine into an organ or tissue, or removal of excess fluid (effusion) e.g. from the joints 159 8-020.8
Measurement of brain waves triggered by targeted stimuli (evoked potentials) 157 1-208.6
149 9-984.9
Intensive care monitoring of respiration, the heart and the circulation without measurement of the pressure in the pulmonary artery and in the right atrium of the heart 113 8-930
Measurement of brain waves triggered by targeted stimuli (evoked potentials) 108 1-208.0
Examination of the oesophagus, stomach and duodenum by endoscopy 88 1-632.0
Other examination of the function of the nervous system 86 1-20a.20
Examination of the bronchi by taking a sample of fluid or tissue with a needle 86 1-843
85 9-984.6
Insertion or exchange of a tube (catheter) in a large vein 83 8-831.0
Intensive care monitoring of respiration, the heart and the circulation with measurement of the pressure in the superior vena cava (central venous pressure) 80 8-931.0
Insertion of a tube into the trachea for ventilation - intubation 76 8-701
71 8-98g.11
Treatment of a vessel with access via a tube (catheter) 68 8-836.80
Interdisciplinary management other chronic illnesses 68 8-97d.1
Measurement of the brain waves - EEG 65 1-207.1
50 8-98f.0
47 8-98g.12
45 9-984.a
Additional information on materials used 44 8-83b.84
Insertion of a small tube (cannula) or catheter into the space between the lungs and ribs for the drainage of fluid 41 8-144.0
Image fusion from different imaging sources on a computer 39 3-997
Treatment by the targeted insertion of a needle into the brain, spinal cord or the eye with subsequent administration or removal of substances, e.g. fluid 38 8-151.4
Transfusion of blood, red blood cells or platelets from a donor to a recipient 36 8-800.c0
34 8-98g.10
Transfusion of blood plasma or plasma components or genetically engineered blood proteins 32 8-810.wd
27 8-98e.1
26 8-017.2
26 8-83b.87
Insertion or exchange of a tube (catheter) in a large vein 25 8-831.2
Additional information on materials used 25 8-83b.c6
Treatment by injecting a medicine into an organ or tissue, or removal of excess fluid (effusion) e.g. from the joints 24 8-020.x
Interdisciplinary management other chronic illnesses 24 8-97d.2
21 8-017.0
Filtration of antibodies from the blood 21 8-821.0
Interdisciplinary management other chronic illnesses 21 8-97d.0
Treatment procedure to maintain and encourage practical everyday and social skills - psychosocial intervention 21 9-401.30
Examination of the space between the lungs and ribs by taking a sample of fluid or tissue with a needle 20 1-844
20 8-017.1
Keeping the respiratory tract open by means of a tube through the mouth or nose 20 8-700.1
Transfusion of blood plasma or plasma components or genetically engineered blood proteins 20 8-810.w9
20 9-984.b
Transfusion of blood plasma or plasma components or genetically engineered blood proteins 19 8-810.wb
Surgical removal of a blood clot including the adjacent inner wall of an artery 18 5-381.01
Surgical removal of a blood clot including the adjacent inner wall of an artery 18 5-381.02
Use of a face, nasal, or laryngeal mask for mechanical ventilation 18 8-706
18 8-98e.2
18 8-98f.10
18 8-98h.02
Surgical removal of a blood clot including the adjacent inner wall of an artery 17 5-381.03
Insertion or exchange of a tube (catheter) in a large vein 17 8-831.5
17 8-98e.0
17 8-98g.13
Treatment by washing out (irrigating) the ear 16 8-171.0
Additional information on materials used 16 8-83b.70
Insertion of a temporary, artificial tracheal opening 15 5-311.1
Cardiac or cardiopulmonary resuscitation 15 8-771
Treatment of the heart and/or the coronary arteries with access through a tube (catheter) along the blood vessels 15 8-837.d0
Examination of the large intestine by endoscopy - colonoscopy 14 1-650.1
Transfusion of blood plasma or plasma components or genetically engineered blood proteins 14 8-810.wa
Additional information on materials used 14 8-83b.85
14 8-981.33
Measurement of hearing - audiometry 13 1-242
Taking a tissue sample (biopsy) of lymph nodes, spleen or thymus gland through the skin, guided by imaging procedures such as ultrasound 13 1-426.3
Ultrasound of the lungs with access through the respiratory tract 13 3-05f
Simple surgical closure of the skin or the subcutaneous tissues after injuries, e.g. with a suture 13 5-900.04
Treatment by the targeted insertion of a needle into the chest with subsequent administration or removal of substances, e.g. fluid 13 8-152.1
Nature of the graft material 12 5-930.3
Additional information on materials used 12 8-83b.c5
Monitoring of the brain waves for more than 24 hours 12 8-920
12 8-98h.03
Examination of the cerebrospinal fluid spaces 11 1-204.1
Examination of the cerebrospinal fluid spaces 11 1-204.5
11 8-713.0
Additional information on materials used 11 8-83b.36
Additional information on materials used 11 8-83b.50
11 8-98e.3
(Neuro-)psychological assessment or establishing the psychosocial background such as financial, occupational and family situation 10 1-901.1
Treatment of a vessel with access via a tube (catheter) 10 8-836.0m
10 8-98f.11
Taking a tissue sample (biopsy) of the upper digestive tract, biliary tract or the pancreas by endoscopy 9 1-440.a
Intra-operative blood flow measurement in vessels 9 5-98e
Early postoperative treatment and early rehabilitation of patients with diseases of the nervous system or who have had neurosurgery 9 8-552.9
Transfusion of blood plasma or plasma components or genetically engineered blood proteins 9 8-810.w7
Additional information on materials used 9 8-83b.3b
Implantation of non-drug eluting tubing (stents) in blood vessels 9 8-840.0m
Radio-controlled cardiological telemetry 9 8-933
Early postoperative treatment and early rehabilitation of patients with diseases of the nervous system or who have had neurosurgery 8 8-552.7
Early postoperative treatment and early rehabilitation of patients with diseases of the nervous system or who have had neurosurgery 8 8-552.8
Treatment of cardiac arrhythmias with electric shocks - defibrillation 8 8-640.0
Treatment of late stage Parkinson's disease with drug pumps 8 8-97e.3
8 8-98f.20
Examination of the urethra and the urinary bladder by endoscopy 7 1-661
Creating another connection between blood vessels (shunt) or inserting a bypass graft 7 5-393.9
Injection or administration of medicines into the urinary bladder 7 8-132.3
Additional information on materials used 7 8-83b.08
Interdisciplinary management for colonisation or infection with multiresistant germs (pathogens) 7 8-987.13
7 8-98f.21
Taking a tissue sample (biopsy) of muscle or soft tissue through a surgical incision 6 1-502.6
Examination of the trachea and the bronchi by endoscopy 6 1-620.01
Treatment of a vessel with access via a tube (catheter) 6 8-836.81
Implantation of non-drug eluting tubing (stents) in blood vessels 6 8-840.0k
6 8-98g.00
6 8-98h.01
Taking a tissue sample (biopsy) of nerves outside the brain and spinal cord through a surgical incision 5 1-513.8
Examination of the oesophagus and the stomach by endoscopy 5 1-631.0
Other operations on blood vessels 5 5-399.5
Cancer treatment for one or more days with chemotherapy drugs administered into a vein or beneath the skin 5 8-542.11
Transfusion of blood, red blood cells or platelets from a donor to a recipient 5 8-800.c1
Transfusion of blood plasma or plasma components or genetically engineered blood proteins 5 8-810.wc
Transfusion of blood plasma or plasma components or genetically engineered blood proteins 5 8-810.wf
Transfusion of other plasma components or genetically engineered blood proteins 5 8-812.52
Transfusion of other plasma components or genetically engineered blood proteins 5 8-812.53
Filtration of antibodies from the blood 5 8-821.2
Treatment of a vessel with access via a tube (catheter) 5 8-836.0k
5 8-98g.02
Examination of the S-shaped part of the large intestine (sigmoid colon) by endoscopy 4 1-651
Examination of the rectum by endoscopy 4 1-654.0
4 1-999.40
Surgical opening of the blood vessels or removal of a blood clot 4 5-380.24
Temporary covering of soft tissue injuries with skin or artificial skin 4 5-916.a3
Removal of a foreign body by endoscopy 4 8-100.40
Exchange or removal of a urinary catheter through the abdominal wall 4 8-133.0
Early postoperative treatment and early rehabilitation of patients with diseases of the nervous system or who have had neurosurgery 4 8-552.6
Transfusion of other plasma components or genetically engineered blood proteins 4 8-812.60
Procedure for dialysing the blood outside the body with removal of the poison over a concentration gradient - dialysis 4 8-854.71
Procedure for dialysing the blood outside the body with removal of the poison over a concentration gradient - dialysis 4 8-854.73
4 8-98f.31
4 8-98h.04
Treatment procedure to maintain and encourage practical everyday and social skills - psychosocial intervention 4 9-401.10
Treatment procedure to maintain and encourage practical everyday and social skills - psychosocial intervention 4 9-401.31
Examination to establish brain death not specified 1-202.01
Examination to establish brain death not specified 1-202.1
Examination of the cerebrospinal fluid spaces not specified 1-204.0
Taking a tissue sample (biopsy) of the bone marrow without surgical incision not specified 1-424
Taking a tissue sample (biopsy) of the respiratory tract by endoscopy not specified 1-430.10
Taking a tissue sample (biopsy) of the respiratory tract by endoscopy not specified 1-430.20
Taking a tissue sample (biopsy) of the lower digestive tract by endoscopy not specified 1-444.6
Taking a tissue sample (biopsy) of the lower digestive tract by endoscopy not specified 1-444.7
Taking a tissue sample (biopsy) of joints or bursae with a needle not specified 1-483.6
Taking a tissue sample (biopsy) of skin or subcutaneous tissues without surgical incision not specified 1-490.0
Taking a tissue sample (biopsy) of muscle or soft tissue through a surgical incision not specified 1-502.0
Taking a tissue sample (biopsy) of the uterus or cervix through a surgical incision not specified 1-571.1
Examination of the trachea and the bronchi by endoscopy not specified 1-620.0x
Examination of the oesophagus by endoscopy not specified 1-630.0
Examination of the small intestine by swallowing a capsule containing a camera not specified 1-63a
Examination of the biliary tract by X-ray examination with contrast medium during endoscopy of the duodenum not specified 1-640
Examination of the biliary tract and pancreatic ducts by X-ray examination with contrast medium during endoscopy of the duodenum not specified 1-642
Examination of the large intestine by endoscopy - colonoscopy not specified 1-650.0
Examination of the large intestine by endoscopy - colonoscopy not specified 1-650.2
Examination of the anus and rectum by endoscopy not specified 1-653
Examination of the urethra by endoscopy not specified 1-660
Examination of the abdominal cavity or its organs by endoscopy not specified 1-694
Endoscopy of the digestive tract through a surgical opening or during another operation not specified 1-695.x
Examination of the abdominal cavity by taking a sample of fluid or tissue with a needle not specified 1-853.2
Examination of a joint or of a bursa by taking a sample of fluid or tissue with a needle not specified 1-854.7
Assessment of perception and behaviour by means of standardised tests not specified 1-902.0
Additional information for investigations not specified 1-999.02
not specified 1-999.42
Comprehensive ultrasound examination with contrast medium for investigating and excluding suspected diagnoses not specified 3-030
Comprehensive ultrasound examination of the heart (echocardiography) by attaching the ultrasound transponder to the chest wall (transthoracic) during physical exercise not specified 3-031
Ultrasound of the stomach with access through the oesophagus not specified 3-053
Tooth extraction not specified 5-230.0
Insertion of a permanent, artificial tracheal opening not specified 5-312.0
Insertion of a permanent, artificial tracheal opening not specified 5-312.1
Reconstructive operations on the trachea not specified 5-316.2
Reconstructive operations on the trachea not specified 5-316.61
Other operations on the larynx or trachea not specified 5-319.3
Surgical opening of the blood vessels or removal of a blood clot not specified 5-380.02
Surgical opening of the blood vessels or removal of a blood clot not specified 5-380.11
Surgical opening of the blood vessels or removal of a blood clot not specified 5-380.12
Surgical opening of the blood vessels or removal of a blood clot not specified 5-380.20
Surgical opening of the blood vessels or removal of a blood clot not specified 5-380.54
Surgical opening of the blood vessels or removal of a blood clot not specified 5-380.70
Surgical opening of the blood vessels or removal of a blood clot not specified 5-380.71
Surgical opening of the blood vessels or removal of a blood clot not specified 5-380.72
Surgical opening of the blood vessels or removal of a blood clot not specified 5-380.8x
Surgical removal of a blood vessel and rejoining the two ends not specified 5-382.02
Surgical removal of part of the aorta with the interposition of a graft not specified 5-384.75
Surgical suture of blood vessels not specified 5-388.54
Surgical suture of blood vessels not specified 5-388.70
Other surgical closure of blood vessels not specified 5-389.00
Other surgical closure of blood vessels not specified 5-389.02
Other operations on blood vessels not specified 5-399.4
Other operations on blood vessels not specified 5-399.7
Surgical removal of individual lymph nodes or lymphatic vessels not specified 5-401.00
Other surgical incision into the skin or subcutaneous tissues not specified 5-892.0g
Other surgical incision into the skin or subcutaneous tissues not specified 5-892.1c
not specified 5-896.1c
not specified 5-896.1e
Simple surgical closure of the skin or the subcutaneous tissues after injuries, e.g. with a suture not specified 5-900.00
Simple surgical closure of the skin or the subcutaneous tissues after injuries, e.g. with a suture not specified 5-900.07
Simple surgical closure of the skin or the subcutaneous tissues after injuries, e.g. with a suture not specified 5-900.09
Simple surgical closure of the skin or the subcutaneous tissues after injuries, e.g. with a suture not specified 5-900.0f
Temporary covering of soft tissue injuries with skin or artificial skin not specified 5-916.a0
Nature of the graft material not specified 5-930.4
Type of material used for tissue replacement and tissue reinforcement not specified 5-932.13
Use of a cardiac pacemaker that can be used in a magnetic resonance tomography unit not specified 5-934.1
Revision operations not specified 5-983
Operation using aids for optical magnification, e.g. magnifying spectacles, operating microscope not specified 5-984
Administration of medicines in accordance with List 1 of the procedures list not specified 6-001.d2
Administration of medicines in accordance with List 1 of the procedures list not specified 6-001.h3
Administration of medicines in accordance with List 1 of the procedures list not specified 6-001.h8
Administration of medicines in accordance with List 2 of the procedures list not specified 6-002.96
Administration of medicines in accordance with List 2 of the procedures list not specified 6-002.e5
Administration of medicines in accordance with List 2 of the procedures list not specified 6-002.k0
Administration of medicines in accordance with List 2 of the procedures list not specified 6-002.p7
Administration of medicines in accordance with List 3 of the procedures list not specified 6-003.g2
not specified 6-006.20
not specified 6-006.21
not specified 6-006.22
not specified 6-006.25
not specified 6-009.j
not specified 6-00b.f
not specified 6-00c.0
Removal of a foreign body by endoscopy not specified 8-100.41
Removal of a foreign body by endoscopy not specified 8-100.4x
Exchange or removal of a feeding tube inserted into the stomach through the skin not specified 8-123.0
Exchange or removal of a feeding tube inserted into the stomach through the skin not specified 8-123.1
Exchange or removal of a feeding tube inserted into the small intestine through the skin not specified 8-124.0
Insertion or exchange of a tube inserted into the small intestine through the oesophagus not specified 8-125.2
Injection or administration of medicines into the urinary bladder not specified 8-132.1
Exchange or removal of a urinary catheter through the abdominal wall not specified 8-133.1
Exchange or removal of a tube (catheter) in the kidney for draining urine through the abdominal wall not specified 8-138.0
Other procedure on the kidney, ureter, bladder or urethra not specified 8-139.00
Insertion of a small tube (cannula) or catheter into the space between the lungs and ribs for the drainage of fluid not specified 8-144.2
Insertion of a small tube (cannula) or catheter into another organ or tissue for the drainage of fluid not specified 8-148.0
Treatment by the targeted insertion of a needle into the chest with subsequent administration or removal of substances, e.g. fluid not specified 8-152.0
Treatment by the targeted insertion of a needle into the abdominal cavity with subsequent administration or removal of substances, e.g. fluid not specified 8-153
Treatment by washing out (lavage) the abdominal cavity with a drain and temporary closure of the abdominal wall not specified 8-176.2
Specific dressing techniques not specified 8-190.20
Specific dressing techniques not specified 8-190.21
not specified 8-192.0d
not specified 8-192.0g
not specified 8-192.1d
not specified 8-192.1e
Treatment by specific positioning of the patient in bed, e.g. positioning in a sling table or special bed not specified 8-390.x
Treatment of a nose bleed by packing with absorbent material (tamponade) not specified 8-500
Others therapeutic procedures to influence the immune system not specified 8-547.0
Others therapeutic procedures to influence the immune system not specified 8-547.31
Early postoperative treatment and early rehabilitation of patients with diseases of the nervous system or who have had neurosurgery not specified 8-552.0
Early postoperative treatment and early rehabilitation of patients with diseases of the nervous system or who have had neurosurgery not specified 8-552.5
Treatment by extreme cooling (hypothermia) to reduce the need for oxygen not specified 8-607.4
Treatment of cardiac arrhythmias with electric shocks - defibrillation not specified 8-640.1
Temporary stimulation of the heart rhythm by an external cardiac pacemaker not specified 8-641
Temporary stimulation of the heart rhythm by an implanted cardiac pacemaker not specified 8-642
Installation and adjustment of a mechanical ventilator for home use not specified 8-716.00
Installation and adjustment of a mechanical ventilator for home use not specified 8-716.01
not specified 8-718.71
not specified 8-718.72
not specified 8-718.73
not specified 8-718.74
Other resuscitation measures not specified 8-779
Transfusion of blood, red blood cells or platelets from a donor to a recipient not specified 8-800.c2
Transfusion of blood, red blood cells or platelets from a donor to a recipient not specified 8-800.c3
Transfusion of blood, red blood cells or platelets from a donor to a recipient not specified 8-800.f0
Transfusion of blood, red blood cells or platelets from a donor to a recipient not specified 8-800.g3
Transfusion of blood previously taken from a person - autologous blood transfusion not specified 8-803.2
Transfusion of blood plasma or plasma components or genetically engineered blood proteins not specified 8-810.j5
Transfusion of blood plasma or plasma components or genetically engineered blood proteins not specified 8-810.w3
Transfusion of blood plasma or plasma components or genetically engineered blood proteins not specified 8-810.w4
Transfusion of blood plasma or plasma components or genetically engineered blood proteins not specified 8-810.w8
Transfusion of blood plasma or plasma components or genetically engineered blood proteins not specified 8-810.we
Transfusion of other plasma components or genetically engineered blood proteins not specified 8-812.50
Transfusion of other plasma components or genetically engineered blood proteins not specified 8-812.51
Transfusion of other plasma components or genetically engineered blood proteins not specified 8-812.54
Transfusion of other plasma components or genetically engineered blood proteins not specified 8-812.61
Treatment of a vessel with access via a tube (catheter) not specified 8-836.00
Treatment of a vessel with access via a tube (catheter) not specified 8-836.07
Treatment of a vessel with access via a tube (catheter) not specified 8-836.08
Treatment of a vessel with access via a tube (catheter) not specified 8-836.70
Treatment of a vessel with access via a tube (catheter) not specified 8-836.9h
Treatment of a vessel with access via a tube (catheter) not specified 8-836.m0
Treatment of a vessel with access via a tube (catheter) not specified 8-836.m2
Treatment of a vessel with access via a tube (catheter) not specified 8-836.mh
Treatment of a vessel with access via a tube (catheter) not specified 8-836.n2
Treatment of a vessel with access via a tube (catheter) not specified 8-836.n4
Treatment of a vessel with access via a tube (catheter) not specified 8-836.n9
Treatment of the heart and/or the coronary arteries with access through a tube (catheter) along the blood vessels not specified 8-837.00
Treatment of the heart and/or the coronary arteries with access through a tube (catheter) along the blood vessels not specified 8-837.01
Treatment of the heart and/or the coronary arteries with access through a tube (catheter) along the blood vessels not specified 8-837.m0
Treatment of the heart and/or the coronary arteries with access through a tube (catheter) along the blood vessels not specified 8-837.m2
Treatment of the heart and/or the coronary arteries with access through a tube (catheter) along the blood vessels not specified 8-837.m3
Additional information on materials used not specified 8-83b.2x
Additional information on materials used not specified 8-83b.51
Additional information on materials used not specified 8-83b.71
Additional information on materials used not specified 8-83b.72
Additional information on materials used not specified 8-83b.80
Additional information on materials used not specified 8-83b.86
Additional information on materials used not specified 8-83b.9
Additional information on materials used not specified 8-83b.bx
Additional information on materials used not specified 8-83b.c2
Additional information on materials used not specified 8-83b.c3
Additional information on materials used not specified 8-83b.d
Other treatment of a vessel with access via a tube (catheter) not specified 8-83c.60
Other treatment of a vessel with access via a tube (catheter) not specified 8-83c.61
Other treatment of a vessel with access via a tube (catheter) not specified 8-83c.62
Other treatment of a vessel with access via a tube (catheter) not specified 8-83c.70
Other treatment of a vessel with access via a tube (catheter) not specified 8-83c.71
Other treatment of a vessel with access via a tube (catheter) not specified 8-83c.72
Implantation of non-drug eluting tubing (stents) in blood vessels not specified 8-840.02
Implantation of non-drug eluting tubing (stents) in blood vessels not specified 8-840.08
Implantation of non-drug eluting tubing (stents) in blood vessels not specified 8-840.0a
Implantation of non-drug eluting tubing (stents) in blood vessels not specified 8-840.1k
Implantation of self-expanding tubing (microstents) in blood vessels not specified 8-844.00
not specified 8-84d.08
Procedure for dialysing the blood outside the body with removal of the poison over a concentration gradient - dialysis not specified 8-854.72
Procedure for dialysing the blood outside the body with removal of the poison over a concentration gradient - dialysis not specified 8-854.74
Procedure for dialysing the blood outside the body with removal of the poison over a concentration gradient - dialysis not specified 8-854.76
Pain control by injecting an anaesthetic around a nerve root or nerve close to the spine not specified 8-914.1x
Treatment of late stage Parkinson's disease with drug pumps not specified 8-97e.1
Interdisciplinary management for colonisation or infection with multiresistant germs (pathogens) not specified 8-987.10
Interdisciplinary management for colonisation or infection with multiresistant germs (pathogens) not specified 8-987.11
Interdisciplinary management for colonisation or infection with multiresistant germs (pathogens) not specified 8-987.12
not specified 8-98f.30
not specified 8-98f.40
not specified 8-98f.41
not specified 8-98f.60
not specified 8-98f.61
not specified 8-98g.01
not specified 8-98g.14
not specified 8-98h.05
not specified 8-98h.06
not specified 8-98h.13
Treatment procedure to maintain and encourage practical everyday and social skills - psychosocial intervention not specified 9-401.32
Specific psychotherapeutic procedure where patients are treated individually - individual therapy not specified 9-410.04
Patient education not specified 9-500.0
Post mortem examination (autopsy) in the hospital to determine the cause of death or for quality assurance not specified 9-990