ICD-10 Code for Folliculitis
Also indexed as (superficial)
The ICD-10-CM code for folliculitis is L73.9 — Follicular disorder, unspecified. This is the code the Alphabetic Index gives for folliculitis with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
L73.9 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.
Which folliculitis code should you use?
The Alphabetic Index lists 8 codes under Folliculitis. 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
| abscedens et suffodiens | L66.3 | Perifolliculitis capitis abscedens | |
| cyst | N83.0 | Follicular cyst of ovary | not billable |
| decalvans | L66.2 | Folliculitis decalvans | |
| gonococcal | A54.01 | Gonococcal cystitis and urethritis, unspecified | |
| keloid, keloidalis | L73.0 | Acne keloid | |
| pustular | L01.02 | Bockhart's impetigo | |
| ulerythematosa reticulata | L66.4 | Folliculitis ulerythematosa reticulata |
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