ICD-10 Code for Myiasis
Also indexed as (cavernous)
The ICD-10-CM code for myiasis is B87.9 — Myiasis, unspecified. This is the code the Alphabetic Index gives for myiasis with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
B87.9 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.
Which myiasis code should you use?
The Alphabetic Index lists 9 codes under Myiasis. 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
| aural | B87.4 | Aural myiasis | |
| creeping | B87.0 | Cutaneous myiasis | |
| cutaneous | B87.0 | Cutaneous myiasis | |
| dermal | B87.0 | Cutaneous myiasis | |
| ear | B87.4 | Aural myiasis | |
| eye | B87.2 | Ocular myiasis | |
| genitourinary | B87.81 | Genitourinary myiasis | |
| intestinal | B87.82 | Intestinal myiasis | |
| laryngeal | B87.3 | Nasopharyngeal myiasis | |
| nasopharyngeal | B87.3 | Nasopharyngeal myiasis | |
| ocular | B87.2 | Ocular myiasis | |
| orbit | B87.2 | Ocular myiasis | |
| skin | B87.0 | Cutaneous myiasis | |
| specified site NEC | B87.89 | Myiasis of other sites | |
| traumatic | B87.1 | Wound myiasis | |
| wound | B87.1 | Wound myiasis |
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