ICD-10-CM 2027
ICD-10 code for skin acquired lax
From the official ICD-10-CM alphabetic index entry “Lax, laxity › skin (acquired)”. Page updated September 29, 2026.
About coding skin acquired lax
The ICD-10-CM code for skin acquired lax is L57.4 (Cutis laxa senilis). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on L57.4.
Within L57 (skin changes due to chronic exposure to nonionizing radiation), L57.4 is specifically for cutis laxa senilis. Related codes cover actinic keratosis (L57.0), actinic reticuloid (L57.1), cutis rhomboidalis nuchae (L57.2), Poikiloderma of Civatte (L57.3), 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 skin acquired lax codes (official index)
- congenital Q82.8 — Other specified congenital malformations of skin
Common questions about skin acquired lax ICD-10 codes
What is the ICD-10 code for skin acquired lax?
- L57.4 — Cutis laxa senilis. More specific codes apply when the documentation supports them: Q82.8.
What is the ICD-10 code for congenital skin acquired lax?
- Q82.8 — Other specified congenital malformations of skin.
Is L57.4 billable?
- Yes. L57.4 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can L57.4 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict L57.4 as a principal diagnosis.
Is L57.4 a CC or MCC?
- No. L57.4 is neither a CC nor an MCC under MS-DRG v44.0.