Excludes1 pair
L87- vs L92.0
L87 and L92.0 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 L87
granuloma annulare (perforating) (L92.0)
L87
Transepidermal elimination disorders
Not billable
- Chapter 12
- Diseases of the skin and subcutaneous tissue
- Section
- L80-L99
L92.0
Granuloma annulare
Billable
- Chapter 12
- Diseases of the skin and subcutaneous tissue
- Section
- L80-L99
Use when the record says
- Perforating granuloma annulare
Indexed under
- Granuloma › annulare (perforating)
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