2026 ICD-10-CM Diagnosis Code Q74.2Other congenital malformations of lower limb(s), including pelvic girdle

ICD-10-CM Codes›Q00-Q99›Q65-Q79›s

ICD-10-CM Q74.2
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Q74.2 is a billable ICD-10-CM diagnosis code for other congenital malformations of lower limb(s), including pelvic girdle. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 564 through 566. The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Musculoskeletal congenital conditions.

Code Identity

ICD-10-CM Code
Q74.2
Billable Status
Yes — Valid for Submission
Code Describes
Other congenital malformations of lower limb(s), including pelvic girdle
Short Description
Oth congen malform of lower limb(s), including pelvic girdle
Parent Code
Q74
Other congenital malformations of limb(s)

Code Classification

ChapterQ00-Q99Congenital malformations, deformations and chromosomal abnormalities
SectionQ65-Q79Congenital malformations and deformations of the musculoskeletal system
CategorysOther congenital malformations of limb (Q74)
This CodeQ74.2Other congenital malformations of lower limb(s), including pelvic girdle

Present on Admission (POA)Billing

Q74.2 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Abnormal tapering of distal femur
  • Agenesis of ilium
  • Agenesis of ischium
  • Agenesis of pubis
  • Ankle joint deformity
  • Aplasia of bone of pelvis
  • Aplasia of fibula
  • Aplasia of pubis
  • Assimilation pelvis
  • Beaked pelvis
  • Bilateral congenital ankle joint dysplasia
  • Bilateral congenital deformity of lower limbs
  • Bilateral congenital lower limb hypertrophy
  • Bilateral congenital retroversion of femurs
  • Bilateral congenital tibiofibular synostosis
  • Brachypellic pelvis
  • Congenital abnormal fusion of femur
  • Congenital abnormal fusion of fibula
  • Congenital abnormal fusion of ilium
  • Congenital abnormal fusion of ischium
  • Congenital abnormal fusion of tibia
  • Congenital abnormal shape of femur
  • Congenital abnormal shape of fibula
  • Congenital abnormal shape of ilium
  • Congenital abnormal shape of ischium
  • Congenital abnormal shape of pubis
  • Congenital abnormal shape of tibia
  • Congenital abnormality of lower limb and pelvic girdle
  • Congenital absence of ilium
  • Congenital absence of ischium
  • Congenital absence of pelvis and lower limb
  • Congenital absence of pubis
  • Congenital angulation of tibia
  • Congenital anomaly of femur
  • Congenital anomaly of fibula
  • Congenital anomaly of ilium
  • Congenital anomaly of ischium
  • Congenital anomaly of left lower limb
  • Congenital anomaly of lower limb
  • Congenital anomaly of pelvic bones
  • Congenital anomaly of pubis
  • Congenital anomaly of right lower limb
  • Congenital anomaly of the pelvis
  • Congenital anomaly of tibia
  • Congenital anteversion of femur
  • Congenital anteversion of left femur
  • Congenital ball and socket ankle
  • Congenital bent ilium
  • Congenital bent ischium
  • Congenital bent pubis
  • Congenital bilateral internal tibial torsion
  • Congenital contracted pelvis
  • Congenital deformity of ankle joint
  • Congenital deformity of foot and ankle
  • Congenital deformity of left lower limb
  • Congenital deformity of lower limb
  • Congenital deformity of right lower limb
  • Congenital deformity of sacroiliac joint
  • Congenital dysplasia of ankle joint
  • Congenital dysplasia of bilateral lower limbs
  • Congenital dysplasia of head of femur
  • Congenital dysplasia of joint of bilateral feet
  • Congenital dysplasia of joint of foot
  • Congenital dysplasia of joint of left foot
  • Congenital dysplasia of joint of right foot
  • Congenital dysplasia of left ankle joint
  • Congenital dysplasia of left lower limb
  • Congenital dysplasia of lower limb
  • Congenital dysplasia of right ankle joint
  • Congenital dysplasia of right lower limb
  • Congenital fusion of sacroiliac joint
  • Congenital hypoplasia of bone of pelvis
  • Congenital hypoplasia of ilium
  • Congenital hypoplasia of ischium
  • Congenital hypoplasia of pubis
  • Congenital internal tibial torsion
  • Congenital internal torsion of tibia of left lower limb
  • Congenital internal torsion of tibia of right lower limb
  • Congenital malposition of femur
  • Congenital malposition of fibula
  • Congenital malposition of ilium
  • Congenital malposition of ischium
  • Congenital malposition of pubis
  • Congenital malposition of tibia
  • Congenital misalignment of pubis
  • Congenital overgrowth of distal lower limb
  • Congenital overgrowth of foot
  • Congenital overgrowth of lower limb
  • Congenital overgrowth of partial lower limb
  • Congenital overgrowth of proximal lower limb
  • Congenital overgrowth of whole lower limb
  • Congenital pelvic obliquity
  • Congenital prognathism
  • Congenital pseudoarthrosis of limb
  • Congenital pseudoarthrosis of tibia
  • Congenital retroversion of femur
  • Congenital retroversion of left femur
  • Congenital retroversion of right femur
  • Congenital synostosis of lower limb bones
  • Congenital thickening of femur
  • Congenital thickening of fibula
  • Congenital thickening of ilium
  • Congenital thickening of ischium
  • Congenital thickening of pubis
  • Congenital thickening of tibia
  • Congenital undergrowth of partial lower limb
  • Congenital valgus ankle
  • Congenital varus ankle
  • Congenital wide symphysis pubis
  • Constricting band of extremity
  • Constriction ring of lower limb with lymphedema
  • Constriction ring syndrome
  • Constriction ring syndrome of lower limb
  • Constriction ring syndrome of lower limb with amputation
  • Contracted pelvis
  • Cordate pelvis
  • Deventer's pelvis
  • Dislocation of ankle joint due to congenital dysplasia of ankle joint
  • Dislocation of bilateral ankle joints due to congenital dysplasia of bilateral ankle joints
  • Dislocation of joint of bilateral feet due to congenital dysplasia of joint of bilateral feet
  • Dislocation of joint of foot due to congenital dysplasia of joint of foot
  • Dislocation of joint of left ankle
  • Dislocation of joint of left foot due to congenital dysplasia of joint of left foot
  • Dislocation of joint of right ankle
  • Dislocation of joint of right foot due to congenital dysplasia of joint of right foot
  • Dislocation of left ankle joint due to congenital dysplasia of left ankle joint
  • Dislocation of right ankle joint due to congenital dysplasia of right ankle joint
  • Dolichopellic pelvis
  • Duplication of femur
  • Duplication of fibula
  • Duplication of lower limb
  • Duplication of lower limb bone
  • Duplication of tibia
  • Duplication of whole limb
  • Duplication of whole lower limb
  • Dwarf pelvis
  • Dysplasia of head of femur Meyer type
  • Failure of differentiation of bones of lower limb
  • Failure of soft tissue differentiation of lower limb
  • Femur fibula ulna complex
  • Fibular aplasia and ectrodactyly syndrome
  • Fibular aplasia, tibial campomelia, oligo-syndactyly syndrome
  • Funnel-shaped pelvis
  • Gollop Wolfgang complex
  • High assimilation pelvis
  • Hypertrophy of femur
  • Hypertrophy of fibula
  • Hypertrophy of tibia
  • Incomplete ossification of femur
  • Incomplete ossification of fibula
  • Incomplete ossification of ilium
  • Incomplete ossification of ischium
  • Incomplete ossification of pubis
  • Incomplete ossification of tibia
  • Internal tibial torsion
  • Intrauterine amputation of lower limb
  • Inverted pelvis
  • Juvenile pelvis
  • Lack of ossification of femur
  • Lack of ossification of fibula
  • Lack of ossification of ilium
  • Lack of ossification of pubis
  • Lack of ossification of tibia
  • Lower limb malformation hypospadias syndrome
  • Lymphedema of lower extremity
  • Macrodactyly of toe
  • Macrodactyly of toe of left foot
  • Macrodactyly of toe of right foot
  • Macromelia
  • Mesatipellic pelvis
  • MMEP syndrome
  • Morava Mehes syndrome
  • Nagele's pelvis
  • Oto-onycho-peroneal syndrome
  • Pelvic dysplasia, arthrogryposis of lower limbs syndrome
  • Pelvic obliquity
  • Pelvis justo major
  • Pelvis justo minor
  • Pelvis plana
  • Pelvis shoulder dysplasia
  • Persistent congenital anteversion of femur
  • Platypellic pelvis
  • Pseudoarthrosis
  • Reniform pelvis
  • Robert's pelvis
  • Short rib dysplasia
  • Supernumerary bone of foot
  • Thoracolaryngopelvic dysplasia
  • Tibio-fibular synostosis

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Congenital fusion of sacroiliac joint
  • Congenital malformation of ankle joint
  • Congenital malformation of sacroiliac joint

Type 1 Excludes

  • anteversion of femur neck Q65.89

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Accessory(congenital)
      • sesamoid bones
        • foot
    • Accessory(congenital)
      • tarsal bones
    • Agenesis
      • pelvic girdle (complete) (partial)
    • Android pelvis
    • Angulation
      • femur (acquired)
        • congenital
    • Angulation
      • tibia (acquired)
        • congenital
    • Anomaly, anomalous(congenital) (unspecified type)
      • ankle (joint)
    • Anomaly, anomalous(congenital) (unspecified type)
      • bone
        • leg
    • Anomaly, anomalous(congenital) (unspecified type)
      • bone
        • pelvic girdle
    • Anomaly, anomalous(congenital) (unspecified type)
      • femur NEC
    • Anomaly, anomalous(congenital) (unspecified type)
      • fibula NEC
    • Anomaly, anomalous(congenital) (unspecified type)
      • foot NEC
    • Anomaly, anomalous(congenital) (unspecified type)
      • heel NEC
    • Anomaly, anomalous(congenital) (unspecified type)
      • hip NEC
    • Anomaly, anomalous(congenital) (unspecified type)
      • ilium NEC
    • Anomaly, anomalous(congenital) (unspecified type)
      • ischium NEC
    • Anomaly, anomalous(congenital) (unspecified type)
      • limb
        • lower NEC
    • Anomaly, anomalous(congenital) (unspecified type)
      • lower limb NEC
    • Anomaly, anomalous(congenital) (unspecified type)
      • metatarsus NEC
    • Anomaly, anomalous(congenital) (unspecified type)
      • pelvic girdle NEC
    • Anomaly, anomalous(congenital) (unspecified type)
      • pelvis (bony) NEC
    • Anomaly, anomalous(congenital) (unspecified type)
      • sacroiliac (joint) NEC
    • Anomaly, anomalous(congenital) (unspecified type)
      • tarsus NEC
    • Anomaly, anomalous(congenital) (unspecified type)
      • thigh NEC
    • Anomaly, anomalous(congenital) (unspecified type)
      • tibia NEC
    • Anomaly, anomalous(congenital) (unspecified type)
      • toe
    • Anthropoid pelvis
    • Bifid(congenital)
      • toe NEC
    • Deformity
      • ilium (acquired)
        • congenital
    • Deformity
      • ischium (acquired)
        • congenital
    • Deformity
      • pelvis, pelvic (acquired) (bony)
        • congenital
    • Deformity
      • sacroiliac joint (congenital)
    • Dislocation(articular)
      • sacroiliac (joint) (ligament)
        • congenital
    • Displacement, displaced
      • sacro-iliac (joint) (congenital)
    • Distortion(s) (congenital)
      • sacroiliac joint
    • Dysplasia
      • leg
    • Flat
      • pelvis
        • congenital
    • Funnel
      • pelvis (acquired)
        • congenital
    • Fusion, fused(congenital)
      • astragaloscaphoid
    • Fusion, fused(congenital)
      • limb, congenital
        • lower
    • Fusion, fused(congenital)
      • sacroiliac (joint) (acquired)
        • congenital
    • Hallux
      • rigidus (acquired)
        • congenital
    • Hypertrophy, hypertrophic
      • foot (congenital)
    • Hypertrophy, hypertrophic
      • toe (congenital)
    • Hypoplasia, hypoplastic
      • pelvis, pelvic girdle
    • Macrodactylia, macrodactylism(fingers) (thumbs)
      • toes
    • Maldevelopment
      • hip
    • Maldevelopment
      • toe
    • Male type pelvis
    • Malformation(congenital)
      • joint
        • ankle
    • Malformation(congenital)
      • joint
        • sacroiliac
    • Malposition
      • congenital
        • symphysis pubis
    • Megalodactylia(fingers) (thumbs) (congenital)
      • toes
    • Nonunion
      • symphysis pubis, congenital
    • Pithecoid pelvis
    • Platypelloid pelvis
      • congenital
    • Pronation
      • foot
        • congenital
    • Robert's pelvis
    • Supernumerary(congenital)
      • tarsal bones
    • Sympus
    • Synostosis(congenital)
      • astragalo-scaphoid

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR MAL008
Musculoskeletal congenital conditions
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

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.

The full article covers:

  • What are birth defects?
  • What causes birth defects?
  • Who is at risk of having a baby with birth defects?
  • How are birth defects diagnosed?
  • What are the treatments for birth defects?
  • Can birth defects be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert Q74.2 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
755.65 Macrodactylia of toes
Approximate The match is approximate rather than exact.
ICD-9-CM
755.69 Lower limb anomaly NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About Q74.2Overview

Is Q74.2 (Other congenital malformations of limb(s)) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other congenital malformations of lower limb(s), including pelvic girdle on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does Q74.2 group to?

When other congenital malformations of lower limb(s), including pelvic girdle is the principal diagnosis on an inpatient stay, it groups to MS-DRG 564, 565, 566, with relative weights from 0.7493 to 1.5436 depending on complications. Higher weights mean higher Medicare reimbursement.

Is Q74.2 exempt from POA reporting?

Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for other congenital malformations of lower limb(s), including pelvic girdle on inpatient claims.

What is the ICD-9 equivalent of Q74.2?

Under the General Equivalence Mappings, other congenital malformations of lower limb(s), including pelvic girdle converts to ICD-9-CM 755.65 (macrodactylia of toes) and 755.69 (lower limb anomaly NEC). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.