Q87 vs Q89.7
Q87 and Q89.7 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 Q89.7
congenital malformation syndromes affecting multiple systems (Q87.-)
Q87
Other specified congenital malformation syndromes affecting multiple systems
Not billable
- Chapter 17
- Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders
- Section
- Q80-Q89
Q89.7
Multiple congenital malformations, not elsewhere classified
BillableUnspecified
- Chapter 17
- Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders
- Section
- Q80-Q89
Use when the record says
- Multiple congenital anomalies NOS
- Multiple congenital deformities NOS
Indexed under
- Monster, monstrosity (single)
- Paracephalus
- Teratism
- Anomaly, anomalous › multiple NEC (congenital) (unspecified type)
- Deformity › multiple, congenital NEC
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