Q73 vs Q74
Q73 (Reduction defects of unspecified limb) compared with Q74 (Other congenital malformations of limb(s)), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. Q74 carries an Excludes1 note covering Q73: “reduction defect of limb (Q71-Q73)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| Q73Reduction defects of unspecified limb | Q74Other congenital malformations of limb(s) | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) |
| Definition | Reduction defects of unspecified limb is a non-billable ICD-10-CM category code (Q73). | Other congenital malformations of limb(s) is a non-billable ICD-10-CM category code (Q74). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources