Reduction defects of unspecified limb (Q73) ICD-10-CM
The Q73 code range covers reduction defects of unspecified limb with 4 ICD-10-CM diagnosis codes. 3 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Codes in the Q73 Range 4 codes · 3 billable
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the Q73 range.
Ectromelia
Gross hypo- or aplasia of one or more long bones of one or more limbs. The concept includes amelia, hemimelia, phocomelia, and sirenomelia.
Phocomelia
A congenital malformation in which the upper portion of a limb is either shortened or absent.
About the Q73 Code Range
These birth defects involve a limb that is absent or reduced, without specifying which limb is affected.
Q73 separates limb absence from other reduction defects. Q73.0 identifies absence, Q73.1 identifies a separately named defect, and Q73.8 identifies other reduction defects.
Questions About This Page
How many billable codes are in the Q73 range?
Of the 4 codes in this range, 3 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the Q73 range classify?
The range classifies reduction defects of unspecified limb. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
