Excludes1 pair
L30.4 vs L53-
L30.4 and L53 are not coded together. ICD-10-CM declares them mutually exclusive with an Excludes1 note — the two conditions are not expected to occur together, so exactly one of them is normally correct for a given encounter. The Official Guidelines carve out one exception: if the two conditions are clearly unrelated to each other, both may be reported.
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
- Dermatitis › traumatic NEC
- Eczema › intertriginous NEC
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