| ICD Code | Description |
|---|---|
| 4A00 | Central Nervous |
| 4A01 | Peripheral Nervous |
| 4A02 | Cardiac |
| 4A03 | Arterial |
| 4A04 | Venous |
| 4A05 | Circulatory |
| 4A06 | Lymphatic |
| 4A07 | Visual |
| 4A08 | Olfactory |
| 4A09 | Respiratory |
| 4A0B | Gastrointestinal |
| 4A0C | Biliary |
| 4A0D | Urinary |
| 4A0F | Musculoskeletal |
| 4A0H | Products of Conception, Cardiac |
| 4A0J | Products of Conception, Nervous |
| 4A0Z | None |