L30.4 vs L53
L30.4 and L53 can never be reported together. ICD-10-CM declares them mutually exclusive with an Excludes1 note, meaning the two conditions cannot occur in the same patient — so exactly one of them is correct for any given encounter.
The official note, declared on L53
erythema intertrigo (L30.4)
L30.4
Erythema intertrigo
Billable
- Chapter 12
- Diseases of the skin and subcutaneous tissue
- Section
- L20-L30
Indexed under
- Chafing
- Intertrigo
- Dermatitis › friction (eczematous)
- Dermatitis › traumatic NEC (eczematous)
- Eczema › intertriginous NEC (acute) (chronic) (erythematous) (fissum) (rubrum) (squamous)
L53
Other erythematous conditions
Not billable
- Chapter 12
- Diseases of the skin and subcutaneous tissue
- Section
- L49-L54
Excludes1 is not always absolute: where two conditions covered by the note are genuinely unrelated, CMS guidance permits reporting both. Document the reasoning rather than assuming it. More on Excludes1 vs Excludes2 · FY2027