2027 ICD-10-CM Diagnosis Code L87.1Reactive perforating collagenosis

ICD-10-CM Codes›L00–L99›L80-L99›L87

ICD-10-CM L87.1
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

L87.1 is a billable ICD-10-CM diagnosis code for reactive perforating collagenosis. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 606 through 607. Coders also document this condition as acquired reactive perforating dermatosis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified skin disorders.

Code Identity

ICD-10-CM Code
L87.1
Billable Status
Yes — Valid for Submission
Code Describes
Reactive perforating collagenosis
Short Description
Reactive perforating collagenosis
Same as the full description in the CMS dataset.
Parent Code
L87
Transepidermal elimination disorders

Code Classification

ChapterL00–L99Diseases of the skin and subcutaneous tissue
SectionL80-L99Other disorders of the skin and subcutaneous tissue
CategoryL87Transepidermal elimination disorders
This CodeL87.1Reactive perforating collagenosis

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acquired reactive perforating dermatosis
  • Perforating dermatosis
  • Reactive fibrous tissue proliferation
  • Reactive perforating collagenosis

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to L87.1: its own notes plus those printed at L87 and Chapter 12. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From L87 Transepidermal elimination disorders applies to 5 codes
  • granuloma annulare (perforating) (L92.0)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 12 (L00-L99) Diseases of the skin and subcutaneous tissue applies to 1,001 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • lipomelanotic reticulosis (I89.8)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • viral warts (B07.-)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name L87.1, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming L87.1: they are not reported together with it, unless the two conditions are unrelated.

  • M35 Other systemic involvement of connective tissue
    reactive perforating collagenosis (L87.1)

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR SKN007
Other specified and unspecified skin disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Skin Conditions

Your skin is your body's largest organ. It covers the entire outside of your body. There are many ways that your skin protects your body and helps keep you healthy. For example, it:

The full article covers:

  • What does your skin do?
  • What problems and conditions can affect your skin?
  • How can I keep my skin healthy?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert L87.1 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
701.8 Skin hypertro/atroph NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About L87.1Overview

What is the ICD-10 code for reactive perforating collagenosis?

The ICD-10-CM code for reactive perforating collagenosis is L87.1 (sometimes written as L871). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is L87.1 (Transepidermal elimination disorders) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report reactive perforating collagenosis on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does L87.1 group to?

When reactive perforating collagenosis is the principal diagnosis on an inpatient stay, it groups to MS-DRG 607, 606, with relative weights from 0.8772 to 1.5721 depending on complications. Higher weights mean higher Medicare reimbursement.

Can L87.1 be reported with L92.0?

Not as a rule. The Excludes1 note at L87, which applies to L87.1, lists "granuloma annulare (perforating) (L92.0)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).

What is the ICD-9 equivalent of L87.1?

Under the General Equivalence Mappings, reactive perforating collagenosis converts to ICD-9-CM 701.8 (skin hypertro/atroph NEC). The mapping is approximate, so confirm the match fits the documentation.