L05.01

Billable

ChapterL00–L99

Ranksubcategory

Official Description

Pilonidal cyst with abscess

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Billable/specific code (valid for reimbursement).
•Chapter 12: Diseases of the Skin and Subcutaneous Tissue (L00-L99).

Instructional Notes

Includes

Pilonidal abscess
Pilonidal dimple with abscess
Postanal dimple with abscess

Excludes2(Not included here)

congenital sacral dimple (Q82.6)
parasacral dimple (Q82.6)

General instructions are available for the parent sections:

View CH12 Notes View L00-L08 Notes

Clinical Hierarchy

CH12Diseases of the skin and subcutaneous tissue (L00-L99)

L00-L08Infections of the skin and subcutaneous tissue (L00-L08)

L05Pilonidal cyst and sinus

L05.0Pilonidal cyst and sinus with abscess

L05.01Pilonidal cyst with abscess

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to L05.01:

blockL00-L08

Infections of the skin and subcutaneous tissue (L00-L08)

View context instructions

chapterCH12

Diseases of the skin and subcutaneous tissue (L00-L99)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to L05.01. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

2 raw paths

Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)1 unique routes

pilonidal→L05.01

Cyst (colloid) (mucous) (simple) (retention)1 unique routes

pilonidal (infected) (rectum)

with abscess→L05.01

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 602

Cellulitis with MCC

DRG 603

Cellulitis without MCC

Cross Reference

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