Excludes1 pair
G56- vs G57.7-
G56 and G57.7 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 G57.7
complex regional pain syndrome II of upper limb (G56.4-)
G57.7
Causalgia of lower limb
Not billable
- Chapter 6
- Diseases of the nervous system
- Section
- G50-G59
Use when the record says
- Complex regional pain syndrome II of lower limb
Indexed under
- Causalgia › lower limb
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