Q74Not billable, use a more specific code below

Other congenital malformations of limb(s)

In Congenital malformations and deformations of the musculoskeletal system (Q65-Q79), chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities

6 billable codes under Q74: 1 is a CC; none map to an HCC.A CC or MCC (major CC) is a secondary diagnosis that raises the MS-DRG payment.

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Instructional notes

Excludes1: not coded here, use a different code

  • polydactyly (Q69.-)
  • reduction defect of limb (Q71-Q73)
  • syndactyly (Q70.-)

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Assign Q00-QA1 codes for documented congenital anomalies or genetic disorders at any age, coding non-inherent manifestations separately and sequencing Z38 first on the birth admission.

Read Section I.C.17 (page 74)

Q74 MS-DRGs

As the principal diagnosis, all 6 billable codes under Q74 group to MS-DRG 564, 565, or 566 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

Other codes that refer to Q74

Notes on these codes point to Q74.

  • M20 Excludes1: congenital deformities and malformations of fingers and toes (Q66.-, Q68-Q70, Q74.-)
  • M21 Excludes1: congenital deformities and malformations of limbs (Q65-Q66, Q68-Q74)

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

Birth Defects

A birth defect is a problem that happens while a baby is developing in the mother's body. Most birth defects happen during the first 3 months of pregnancy. One out of every 33 babies in the United States is born with a birth defect.

Read more about birth defects on MedlinePlus

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.