Q11.3 vs Q15.0
Q11.3 and Q15.0 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 Q11.3
macrophthalmos in congenital glaucoma (Q15.0)
Q11.3
Macrophthalmos
Billable
- Chapter 17
- Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders
- Section
- Q10-Q18
Indexed under
- Macrophthalmos
- Megalophthalmos
Q15.0
Congenital glaucoma
Billable
- Chapter 17
- Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders
- Section
- Q10-Q18
Use when the record says
- Axenfeld's anomaly
- Buphthalmos
- Glaucoma of childhood
- Glaucoma of newborn
- Hydrophthalmos
- Keratoglobus, congenital, with glaucoma
- Macrocornea with glaucoma
- Macrophthalmos in congenital glaucoma
Indexed under
- Buphthalmia, buphthalmos (congenital)
- Hydrophthalmos
- Anomaly, anomalous › Axenfeld's (congenital) (unspecified type)
- Atresia, atretic › iris, filtration angle
- Axenfeld's › anomaly or syndrome
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