L30.1 vs L75
L30.1 and L75 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 L75
dyshidrosis (L30.1)
L30.1
Dyshidrosis [pompholyx]
Billable
- Chapter 12
- Diseases of the skin and subcutaneous tissue
- Section
- L20-L30
Indexed under
- Cheiropompholyx
- Dyshidrosis, dysidrosis
- Pompholyx
- Dermatitis › dyshydrotic (eczematous)
- Eczema › dyshydrotic (acute) (chronic) (erythematous) (fissum) (rubrum) (squamous)
L75
Apocrine sweat disorders
Not billable
- Chapter 12
- Diseases of the skin and subcutaneous tissue
- Section
- L60-L75
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