ICD-10-CM 2027
ICD-10 code for reactive perforating collagenosis
From the official ICD-10-CM alphabetic index entry “Collagenosis, collagen disease (nonvascular) (vascular) › reactive perforating”. Page updated September 29, 2026.
About coding reactive perforating collagenosis
The ICD-10-CM code for reactive perforating collagenosis is L87.1 (Reactive perforating collagenosis).
Within L87 (transepidermal elimination disorders), L87.1 is specifically for reactive perforating collagenosis. Related codes cover keratosis follicularis et parafollicularis in cutem penetrans (L87.0), Elastosis perforans serpiginosa (L87.2), other transepidermal elimination disorders (L87.8) and transepidermal elimination disorder, unspecified (L87.9).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 606 (Minor Skin Disorders with MCC, relative weight 1.5728) and DRG 607 (Minor Skin Disorders without MCC, relative weight 0.8772), in MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about reactive perforating collagenosis ICD-10 codes
What is the ICD-10 code for reactive perforating collagenosis?
- L87.1 — Reactive perforating collagenosis.
Is L87.1 billable?
- Yes. L87.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can L87.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict L87.1 as a principal diagnosis.
Is L87.1 a CC or MCC?
- No. L87.1 is neither a CC nor an MCC under MS-DRG v44.0.