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L87.1

L87.1Reactive perforating collagenosis

Billable / specific codeICD-10-CM

L87.1 is a billable, specific ICD-10-CM code for reactive perforating collagenosis. It is valid for submission on a claim.

Excludes1 inherited from the categories above L87.1

These are not written on L87.1, but they bind it: a note on a category applies to every code beneath it. Billing L87.1 with anything listed here is a denial.

Written on L87 Transepidermal elimination disorders

  • granuloma annulare (perforating) (L92.0)

Other codes that can never be billed with L87.1

These codes carry an Excludes1 note pointing at L87.1. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading L87.1 alone.

  • M35Other systemic involvement of connective tissue

Risk adjustment

L87.1 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

L87.1 is named in 3 Medicare coverage policies 3 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A56439Billing and Coding: Blepharoplasty
  • A57044Billing and Coding: Removal of Benign Skin Lesions
  • A57482Billing and Coding: Removal of Benign Skin Lesions

How L87.1 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to L87.1.

  • Collagenosis, collagen diseasereactive perforating

Code history

L87.1 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share L87. If L87.1 is not quite right, the correct code is usually one of these.

Questions about L87.1

Is L87.1 a billable ICD-10-CM code?
Yes. L87.1 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does L87.1 sit in the tabular list?
Diseases of the skin and subcutaneous tissue (L00-L99), in the block Other disorders of the skin and subcutaneous tissue (L80-L99).
What cannot be coded together with L87.1?
L87.1 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above L87.1 (L87) and apply to it just the same.
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.