ICD-10 Code for Ringworm
The ICD-10-CM code for ringworm is B35.9 — Dermatophytosis, unspecified. This is the code the Alphabetic Index gives for ringworm with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
B35.9 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.
Which ringworm code should you use?
The Alphabetic Index lists 9 codes under Ringworm. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
By type
| beard | B35.0 | Tinea barbae and tinea capitis | |
| black dot | B35.0 | Tinea barbae and tinea capitis | |
| body | B35.4 | Tinea corporis | |
| Burmese | B35.5 | Tinea imbricata | |
| corporeal | B35.4 | Tinea corporis | |
| foot | B35.3 | Tinea pedis | |
| groin | B35.6 | Tinea cruris | |
| hand | B35.2 | Tinea manuum | |
| honeycomb | B35.0 | Tinea barbae and tinea capitis | |
| nails | B35.1 | Tinea unguium | |
| perianal | B35.6 | Tinea cruris | |
| scalp | B35.0 | Tinea barbae and tinea capitis | |
| specified NEC | B35.8 | Other dermatophytoses | |
| Tokelau | B35.5 | Tinea imbricata |
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources