MCMCB Pro
L22

L22Diaper dermatitis

Billable / specific codeICD-10-CM

L22 is a billable, specific ICD-10-CM code for diaper dermatitis. It is valid for submission on a claim.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Diaper erythema
  • Diaper rash
  • Psoriasiform diaper rash

Other codes that can never be billed with L22

These codes carry an Excludes1 note pointing at L22. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading L22 alone.

  • L24.A2Irritant contact dermatitis due to fecal, urinary or dual incontinence

Risk adjustment

L22 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.

How L22 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to L22.

  • Diaper rash
  • Jacquet's dermatitis(diaper dermatitis)
  • Napkin rash
  • Dermatitisammonia
  • Dermatitisdiaper
  • DermatitisJacquet's(diaper dermatitis)
  • Dermatitisnapkin
  • Eruptionnapkin
  • Erythema, erythematousdiaper
  • Erythema, erythematousgluteal
  • Erythema, erythematousnapkin
  • Rashdiaper

Questions about L22

Is L22 a billable ICD-10-CM code?
Yes. L22 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does L22 sit in the tabular list?
Diseases of the skin and subcutaneous tissue (L00-L99), in the block Dermatitis and eczema (L20-L30).
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.