| G93 | Other disorders of brain | NON-BILLABLE CODE |
| G93.1 | Anoxic brain damage, not elsewhere classified | BILLABLE CODE |
| G93.2 | Benign intracranial hypertension | BILLABLE CODE |
| G93.3 | Postviral and related fatigue syndromes | NON-BILLABLE CODE |
| G93.31 | Postviral fatigue syndrome | BILLABLE CODE |
| G93.32 | Myalgic encephalomyelitis/chronic fatigue syndrome | BILLABLE CODE |
| G93.39 | Other post infection and related fatigue syndromes | BILLABLE CODE |
| G93.4 | Other and unspecified encephalopathy | NON-BILLABLE CODE |
| G93.40 | Encephalopathy, unspecified | BILLABLE CODE |
| G93.41 | Metabolic encephalopathy | BILLABLE CODE |
| G93.42 | Megaloencephalic leukoencephalopathy with subcortical cysts | BILLABLE CODE |
| G93.43 | Leukoencephalopathy with calcifications and cysts | BILLABLE CODE |
| G93.44 | Adult-onset leukodystrophy with axonal spheroids | BILLABLE CODE |
| G93.49 | Other encephalopathy | BILLABLE CODE |
| G93.5 | Compression of brain | BILLABLE CODE |
| G93.6 | Cerebral edema | BILLABLE CODE |
| G93.7 | Reye's syndrome | BILLABLE CODE |
| G93.8 | Other specified disorders of brain | NON-BILLABLE CODE |
| G93.81 | Temporal sclerosis | BILLABLE CODE |
| G93.82 | Brain death | BILLABLE CODE |
| G93.89 | Other specified disorders of brain | BILLABLE CODE |
| G93.9 | Disorder of brain, unspecified | BILLABLE CODE |
