Reduction defects of lower limb (Q72) ICD-10-CM
The Q72 code range covers reduction defects of lower limb with 57 ICD-10-CM diagnosis codes. 44 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Codes in the Q72 Range 57 codes · 44 billable
- Q72 Reduction defects of lower limbNon-billable
- Q72.0 Congenital complete absence of lower limbNon-billable
- Q72.00 Congenital complete absence of unspecified lower limb
- Q72.01 Congenital complete absence of right lower limb
- Q72.02 Congenital complete absence of left lower limb
- Q72.03 Congenital complete absence of lower limb, bilateral
- Q72.1 Congenital absence of thigh and lower leg with foot presentNon-billable
- Q72.10 Congenital absence of unspecified thigh and lower leg with foot present
- Q72.11 Congenital absence of right thigh and lower leg with foot present
- Q72.12 Congenital absence of left thigh and lower leg with foot present
- Q72.13 Congenital absence of thigh and lower leg with foot present, bilateral
- Q72.2 Congenital absence of both lower leg and footNon-billable
- Q72.20 Congenital absence of both lower leg and foot, unspecified lower limb
- Q72.21 Congenital absence of both lower leg and foot, right lower limb
- Q72.22 Congenital absence of both lower leg and foot, left lower limb
- Q72.23 Congenital absence of both lower leg and foot, bilateral
- Q72.3 Congenital absence of foot and toe(s)Non-billable
- Q72.30 Congenital absence of unspecified foot and toe(s)
- Q72.31 Congenital absence of right foot and toe(s)
- Q72.32 Congenital absence of left foot and toe(s)
- Q72.33 Congenital absence of foot and toe(s), bilateral
- Q72.4 Longitudinal reduction defect of femurNon-billable
- Q72.40 Longitudinal reduction defect of unspecified femur
- Q72.41 Longitudinal reduction defect of right femur
- Q72.42 Longitudinal reduction defect of left femur
- Q72.43 Longitudinal reduction defect of femur, bilateral
- Q72.5 Longitudinal reduction defect of tibiaNon-billable
- Q72.50 Longitudinal reduction defect of unspecified tibia
- Q72.51 Longitudinal reduction defect of right tibia
- Q72.52 Longitudinal reduction defect of left tibia
- Q72.53 Longitudinal reduction defect of tibia, bilateral
- Q72.6 Longitudinal reduction defect of fibulaNon-billable
- Q72.60 Longitudinal reduction defect of unspecified fibula
- Q72.61 Longitudinal reduction defect of right fibula
- Q72.62 Longitudinal reduction defect of left fibula
- Q72.63 Longitudinal reduction defect of fibula, bilateral
- Q72.7 Split footNon-billable
- Q72.70 Split foot, unspecified lower limb
- Q72.71 Split foot, right lower limb
- Q72.72 Split foot, left lower limb
- Q72.73 Split foot, bilateral
- Q72.8 Other reduction defects of lower limbNon-billable
- Q72.81 Congenital shortening of lower limbNon-billable
- Q72.811 Congenital shortening of right lower limb
- Q72.812 Congenital shortening of left lower limb
- Q72.813 Congenital shortening of lower limb, bilateral
- Q72.819 Congenital shortening of unspecified lower limb
- Q72.89 Other reduction defects of lower limbNon-billable
- Q72.891 Other reduction defects of right lower limb
- Q72.892 Other reduction defects of left lower limb
- Q72.893 Other reduction defects of lower limb, bilateral
- Q72.899 Other reduction defects of unspecified lower limb
- Q72.9 Unspecified reduction defect of lower limbNon-billable
- Q72.90 Unspecified reduction defect of unspecified lower limb
- Q72.91 Unspecified reduction defect of right lower limb
- Q72.92 Unspecified reduction defect of left lower limb
- Q72.93 Unspecified reduction defect of lower limb, bilateral
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the Q72 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.
Ectromelia virus
A species of ORTHOPOXVIRUS infecting mice and causing a disease that involves internal organs and produces characteristic skin lesions.
Ectromelia, Infectious
A viral infection of mice, causing edema and necrosis followed by limb loss.
Orthopoxvirus
A genus of the family POXVIRIDAE, subfamily CHORDOPOXVIRINAE, comprising many species infecting mammals. Viruses of this genus cause generalized infections and a rash in some hosts. The type species is VACCINIA VIRUS.
About the Q72 Code Range
The ICD-10 code Q72 covers congenital reduction defects of the lower limb, which involve missing or underdeveloped parts of the leg or foot present from birth. These codes are essential for diagnosing and documenting various specific limb deficiencies.
This section includes detailed codes for conditions such as the congenital complete absence of a lower limb (Q72.0) and its subtypes specifying right, left, or bilateral absence. It also covers conditions like phocomelia (Q72.1), which is the congenital absence of thigh and lower leg with the foot present, and split foot (Q72.7), involving malformations like cleft foot. Codes describe particular bone deficiencies, such as longitudinal reduction defects of the femur, tibia, or fibula (Q72.4-Q72.6), reflecting partial or complete absence of these bones. Additionally, other reduction defects (Q72.8) and unspecified cases (Q72.9) are classified to cover a variety of lesser-defined congenital abnormalities. Terms like “transverse deficiency,” “ectromelia,” and “agenesis” are synonymous with many of these codes, helping coders identify the right code based on clinical terms used for congenital lower limb reduction defects.
For medical coders and healthcare professionals, the ICD-10 code for specific conditions such as congenital absence of right lower limb (Q72.01) or bilateral absence of foot and toes (Q72.33) provides precise identification, which supports accurate clinical documentation and appropriate care planning.
Questions About This Page
How many billable codes are in the Q72 range?
Of the 57 codes in this range, 44 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the Q72 range classify?
The range classifies reduction defects of lower 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 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
