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L03.021

L03.021Acute lymphangitis of right finger

Billable / specific codeICD-10-CMright

L03.021 is a billable, specific ICD-10-CM code for acute lymphangitis of right finger. It is valid for submission on a claim.

Risk adjustment

L03.021 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

L03.021 is named in 5 Medicare coverage policies 5 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A53058Billing and Coding: Home Health Physical Therapy
  • A53064Billing and Coding: Outpatient Occupational Therapy
  • A55909Billing and Coding: Wound Care
  • A56766Billing and Coding: Incision and Drainage (I&D) of Abscess of Skin, Subcutaneous and Accessory Structures

Related codes at this level

Codes that share L03.02. If L03.021 is not quite right, the correct code is usually one of these.

Questions about L03.021

Is L03.021 a billable ICD-10-CM code?
Yes. L03.021 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does L03.021 sit in the tabular list?
Diseases of the skin and subcutaneous tissue (L00-L99), in the block Infections of the skin and subcutaneous tissue (L00-L08).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.