ICD-10-CM · Chapter 1 · A00-B99
A42 Actinomycosis
Excludes 1 (cannot be coded together)
- actinomycetoma (B47.1)
Subcodes
Each subcode links to a detail page with full clinical annotations.
| Code | Description | Billable |
|---|---|---|
| A42..0 | Pulmonary actinomycosis | Yes |
| A42..1 | Abdominal actinomycosis | Yes |
| A42..2 | Cervicofacial actinomycosis | Yes |
| A42..7 | Actinomycotic sepsis | Yes |
| A42..8 | Other forms of actinomycosis | No |
| A42..81 | Actinomycotic meningitis | Yes |
| A42..82 | Actinomycotic encephalitis | Yes |
| A42..89 | Other forms of actinomycosis | Yes |
| A42..9 | Actinomycosis, unspecified | Yes |
Last reviewed: September 2026