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L03.31

Non-billable

Cellulitis of trunk

L03.31 is the ICD-10-CM code for Cellulitis of trunk. It is a non-billable category code — use a more specific child code such as L03.311 for billing.

Status
Header (non-billable)
Chapter
L00-L99
Parent
L03.3
Subcodes
9
Edition
FY2026

L00-L99 Diseases of the skin and subcutaneous tissue

Excludes2 — not included here

  • •cellulitis of anal and rectal regions (K61.-)
  • •cellulitis of breast NOS (N61.0)
  • •cellulitis of female external genital organs (N76.4)
  • •cellulitis of male external genital organs (N48.2, N49.-)
  • •omphalitis of newborn (P38.-)
  • •puerperal cellulitis of breast (O91.2)

Frequently asked questions

What is ICD-10 code L03.31?
L03.31 is the ICD-10-CM code for "Cellulitis of trunk". It falls under L00-L99 Diseases of the skin and subcutaneous tissue.
Is L03.31 a billable code?
No — L03.31 is a non-billable header code. Use a more specific child code (such as L03.311) for billing.
What are the subcodes of L03.31?
L03.31 has 9 more specific child codes, including L03.311, L03.312, L03.313.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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