2026 ICD-10-CM Diagnosis Code L73.1Pseudofolliculitis barbae

ICD-10-CM Codes›L00–L99›L60-L75›L73

ICD-10-CM L73.1
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

L73.1 is a billable ICD-10-CM diagnosis code for pseudofolliculitis barbae. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 606 through 607. Coders also document this condition as pili incarnati. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified skin disorders.

Code Identity

ICD-10-CM Code
L73.1
Billable Status
Yes — Valid for Submission
Code Describes
Pseudofolliculitis barbae
Short Description
Pseudofolliculitis barbae
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 CodeL73.1Pseudofolliculitis barbae

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Pili incarnati
  • Pseudofolliculitis
  • Pseudofolliculitis barbae

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Ingrowing
      • hair (beard)
    • Pili
      • incarnati
    • Pseudofolliculitis barbae

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

Hair Problems

The average person has 5 million hairs. Hair grows all over your body except on your lips, palms, and the soles of your feet. It takes about a month for healthy hair to grow half an inch. Most hairs grow for up to six years and then fall out. New hairs grow in their place.

Read the full article at MedlinePlus

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

Convert L73.1 to ICD-9-CMHistory

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

ICD-9-CM
704.8 Hair diseases 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 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About L73.1Overview

Is L73.1 (Other follicular disorders) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report pseudofolliculitis barbae on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does L73.1 group to?

When pseudofolliculitis barbae is the principal diagnosis on an inpatient stay, it groups to MS-DRG 606, 607, with relative weights from 0.9064 to 1.5132 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of L73.1?

Under the General Equivalence Mappings, pseudofolliculitis barbae converts to ICD-9-CM 704.8 (hair diseases NEC). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.