Excludes1 pair
L73.2 vs L75-
L73.2 and L75 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 L75
hidradenitis suppurativa (L73.2)
L73.2
Hidradenitis suppurativa
Billable
- Chapter 12
- Diseases of the skin and subcutaneous tissue
- Section
- L60-L75
Indexed under
- Hidradenitis (axillaris) (suppurative)
- Hydradenitis (axillaris) (suppurative)
- Hydroadenitis (axillaris) (suppurative)
- Hydrosadenitis (axillaris) (suppurative)
- Pollitzer's disease
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