Excludes1 pair
A71- vs B94.0
A71 and B94.0 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 A71
sequelae of trachoma (B94.0)
B94.0
Sequelae of trachoma
Billable
- Chapter 1
- Certain infectious and parasitic diseases
- Section
- B90-B94
Indexed under
- Sequelae › trachoma
- Trachoma, trachomatous › healed or sequelae
- Conjunctivitis NOS › granular › sequelae (late effect)
- Conjunctivitis NOS › trachomatous › sequelae (late effect)
- Contraction, contracture, contracted › conjunctiva, trachomatous, active › sequelae (late effect)
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