2027 ICD-10-CM Diagnosis Code L73.0Acne keloid

ICD-10-CM Codes›L00–L99›L60-L75›L73

ICD-10-CM L73.0
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

L73.0 is a billable ICD-10-CM diagnosis code for acne keloid. 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 folliculitis keloidalis nuchae. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified skin disorders.

Code Identity

ICD-10-CM Code
L73.0
Billable Status
Yes — Valid for Submission
Code Describes
Acne keloid
Short Description
Acne keloid
Same as the full description in the CMS dataset.
Parent Code
L73
Other follicular disorders

Code Classification

ChapterL00–L99Diseases of the skin and subcutaneous tissue
SectionL60-L75Disorders of skin appendages
CategoryL73Other follicular disorders
This CodeL73.0Acne keloid

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Folliculitis keloidalis nuchae
  • Scalp folliculitis

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to L73.0: its own notes plus those printed at block L60-L75 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 Block L60-L75 Disorders of skin appendages applies to 85 codes
  • congenital malformations of integument (Q84.-)

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 L73.0, its category, or a range that includes it.

Excludes2 2

These codes carry an Excludes2 note naming L73.0: its condition is not part of those codes, and both may be reported when the patient has both.

  • L70 Acne
    acne keloid (L73.0)
  • L91.0 Hypertrophic scar
    acne keloid (L73.0)

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

Clinical InformationClinical

  • Acne Keloid

    a type of acneiform disorder in which secondary pyogenic infection in and around pilosebaceous structures ends in keloidal scarring. it manifests as persistent folliculitis of the back of the neck associated with occlusion of the follicular orifices. it is most often encountered in black or asian men.

Patient EducationClinical

Acne

Acne is a common skin disease that causes pimples. Pimples form when hair follicles under your skin clog up. Most pimples form on the face, neck, back, chest, and shoulders. Anyone can get acne, but it is common in teenagers and young adults. It is not serious, but it can cause scars.

Read the full article at MedlinePlus

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

Convert L73.0 to ICD-9-CMHistory

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

ICD-9-CM
706.1 Acne 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 L73.0Overview

What is the ICD-10 code for acne keloid?

The ICD-10-CM code for acne keloid is L73.0 (sometimes written as L730). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is L73.0 (Other follicular disorders) a billable code?

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

What MS-DRG does L73.0 group to?

When acne keloid 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 L73.0 be reported with a code from Q84?

Not as a rule. The Excludes1 note at block L60-L75, which applies to L73.0, lists "congenital malformations of integument (Q84.-)". 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 L73.0?

Under the General Equivalence Mappings, acne keloid converts to ICD-9-CM 706.1 (acne NEC). The mapping is approximate, so confirm the match fits the documentation.