ICD-9 code groupings for procedure categories.
| Procedure Category | ICD-9-CM Procedure Codes |
|---|---|
| Medication infusion | 9971, 9929, 9928, 9923, 9925, 9921, 9914, 9918, 9919, 9910 |
| Dialysis | 5498, 3995, 3994, 3993, 3942, 3927 |
| Blood transfusion | 9900–9909 |
| Vascular catheterization | 3891, 3892, 3893 |
| Renal biopsy | 5523, 5524 |
| Diagnostic ultrasound | 8872, 8873, 8875, 8877–8879, 0023 |
| Obstetric procedures | 740–742, 7499, 7301, 7309, 731, 734, 7351, 7359, 7531–7535, 7538, 7550–7552, 7561, 7562, 7569 |
| Intubation/ventilation | 9390, 9604, 9671, 9672 |
| Spinal tap | 331 |
| GI endoscopy/biopsy | 4223, 4224, 4414, 4513, 4514, 4516, 4523–4525 |
| CT scan | 8703, 8741, 8801, 8771 0031, 8838 |
| Pericardiocardial/thoracic/abdominal centesis | 3404, 3409, 3491, 370, 5491 |
| MRI | 8891–8895, 8897 |
| Angiography | 8851, 8849, 8847, 8843, 8841, 8852–8857, 3721–3723 |
| Physical/occupational therapy | 9339, 9322, 9311, 9383, 9381, 9375 |
| Bone marrow biopsy | 4131 |
| Bronchoscopy | 3322–3324, 3326, 3327 |
| Enteral/parenteral nutrition | 966, 9915 |
| Plasmapheresis | 9971–9974 |
| EEG | 8914 |
ICD-9-CM: International Classification of Diseases, 9th revision, clinical modification; GI: gastrointestinal; CT: computed tomography; MRI: magnetic resonance imaging; EEG: electroencephalography.