Q71.91 (Unspecified reduction defect of right upper limb) compared with Q71.92 (Unspecified reduction defect of left upper limb), from the official CMS tabular data. Q71.91 and Q71.92 code the same condition on opposite sides.
Same condition; these differ only in which side is documented.
These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.
Source: ICD-10-CM tabular list (laterality variant derived from the code title)
Same condition, opposite side. Q71.91 and Q71.92 name the same condition on opposite sides of the body.
Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.
| Q71.91Unspecified reduction defect of right upper limb | Q71.92Unspecified reduction defect of left upper limb | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) |
| Definition | Unspecified reduction defect of right upper limb is a billable ICD-10-CM diagnosis code (Q71.91). | Unspecified reduction defect of left upper limb is a billable ICD-10-CM diagnosis code (Q71.92). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources