Q73.1 Phocomelia, unspecified limb(s)

Billable ICD-10-CM code, FY2026. Exempt from present-on-admission (POA) reporting.

Applicable to

• Phocomelia NOS

MS-DRG index

Defines the logic of DRG(s) 564-566 in MDC 08.

Approximate ICD-9-CM (GEMs)

• 755.4 Reduction deformities, unspecified limb (approximate)

Code annotations containing back-references to Q73.1

Back-references to Q73

• Type 1 Excludes: M21 Other acquired deformities of limbs ("congenital absence of limbs (Q71-Q73)")
• Type 1 Excludes: M21 Other acquired deformities of limbs ("congenital deformities and malformations of limbs (Q65-Q66, Q68-Q74)")
• Type 1 Excludes: M24.3 Pathological dislocation of joint, not elsewhere classified ("congenital dislocation or displacement of joint- see congenital malformations and deformations of the musculoskeletal system (Q65-Q79)")
• Type 2 Excludes: M95 Other acquired deformities of musculoskeletal system and connective tissue ("congenital malformations and deformations of the musculoskeletal system (Q65-Q79)")
• Type 1 Excludes: Q68 Other congenital musculoskeletal deformities ("reduction defects of limb(s) (Q71-Q73)")
• Type 1 Excludes: Q74 Other congenital malformations of limb(s) ("reduction defect of limb (Q71-Q73)")
• Type 1 Excludes: Z89 Acquired absence of limb ("congenital absence of limbs (Q71-Q73)")

Diagnosis Index entries for Q73.1

• Phocomelia

Nearby codes

• Q73 Reduction defects of unspecified limb
• Q73.0 Congenital absence of unspecified limb(s)
• Q73.1 Phocomelia, unspecified limb(s) (this code)
• Q73.8 Other reduction defects of unspecified limb(s)