ICD-10-CM 2027
ICD-10 code for Keratoma
From the official ICD-10-CM alphabetic index entry “Keratoma”. Page updated September 29, 2026.
About coding Keratoma
The ICD-10-CM code for Keratoma is L57.0 (Actinic keratosis). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on L57.0.
Within L57 (skin changes due to chronic exposure to nonionizing radiation), L57.0 is specifically for actinic keratosis. Related codes cover actinic reticuloid (L57.1), cutis rhomboidalis nuchae (L57.2), Poikiloderma of Civatte (L57.3), cutis laxa senilis (L57.4), actinic granuloma (L57.5), other skin changes due to chronic exposure to nonionizing radiation (L57.8) and unspecified (L57.9).
Use an additional code to identify the source of the ultraviolet radiation (W89), or other nonionizing radiation (W90).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific Keratoma codes (official index)
Common questions about Keratoma ICD-10 codes
What is the ICD-10 code for Keratoma?
- L57.0 — Actinic keratosis. More specific codes apply when the documentation supports them: Q82.8, L57.0.
What is the ICD-10 code for palmaris and plantaris hereditarium keratoma?
- Q82.8 — Other specified congenital malformations of skin.
What is the ICD-10 code for senile keratoma?
- L57.0 — Actinic keratosis.
Is L57.0 billable?
- Yes. L57.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can L57.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict L57.0 as a principal diagnosis.
Is L57.0 a CC or MCC?
- No. L57.0 is neither a CC nor an MCC under MS-DRG v44.0.