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ICD-10-CM 2027

ICD-10 code for buttock cellulitis

L03.317

Cellulitis of buttock

✓ Billable / specificCC — complication/comorbidity

From the official ICD-10-CM alphabetic index entry “Cellulitis (diffuse) (phlegmonous) (septic) (suppurative) › buttock”. Page updated September 29, 2026.

About coding buttock cellulitis

The ICD-10-CM code for buttock cellulitis is L03.317 (Cellulitis of buttock).

Within L03.31 (cellulitis of trunk), L03.317 is specifically for cellulitis of buttock. Related codes cover abdominal wall (L03.311), back [any part except buttock and flank] (L03.312), chest wall (L03.313), groin (L03.314), perineum (L03.315), umbilicus (L03.316), unspecified (L03.319) and flank (L03.31A).

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 573 (Skin Graft for Skin Ulcer or Cellulitis with MCC, relative weight 6.3575), DRG 574 (Skin Graft for Skin Ulcer or Cellulitis with CC, relative weight 3.5674), DRG 575 (Skin Graft for Skin Ulcer or Cellulitis without CC/MCC, relative weight 1.8797), DRG 602 (Cellulitis with MCC, relative weight 1.4273), DRG 603 (Cellulitis without MCC, relative weight 0.8635), DRG 791 (Prematurity with Major Problems, relative weight 4.1075) and 1 more, in MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast) and MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

Common questions about buttock cellulitis ICD-10 codes

What is the ICD-10 code for buttock cellulitis?

L03.317 — Cellulitis of buttock.

Is L03.317 billable?

Yes. L03.317 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can L03.317 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict L03.317 as a principal diagnosis.

Is L03.317 a CC or MCC?

L03.317 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.