2027 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 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

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 2027 (October 1, 2026 through September 30, 2027) 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 the other POA exempt codes in Congenital malformations and deformations of the musculoskeletal system (Q65-Q79).

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 bowing of bone of lower limb
  • 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
  • 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

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to Q74.2: its own notes plus those printed at Q74 and Chapter 17. A note printed at a category, block or chapter applies to every code under it.

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

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

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

On Q74.2 itself
  • anteversion of femur (neck) (Q65.89)
From Q74 Other congenital malformations of limb(s) applies to 6 codes

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 17 (Q00-QA1) Congenital malformations, deformations and chromosomal abnormalities applies to 900 codes
  • inborn errors of metabolism (E70-E88)

Notes

General instructions on how these codes are used.

From Chapter 17 (Q00-QA1) Congenital malformations, deformations and chromosomal abnormalities applies to 900 codes
  • Codes from this chapter are not for use on maternal records

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name Q74.2, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming Q74.2: they are not reported together with it, unless the two conditions are unrelated.

  • M20 Acquired deformities of fingers and toes
    congenital deformities and malformations of fingers and toes (Q66.-, Q68-Q70, Q74.-) names Q74.-, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

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, 2026 through September 30, 2027.

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, 566, 565, with relative weights from 0.7374 to 1.4909 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. The code appears in the Congenital malformations and deformations of the musculoskeletal system (Q65-Q79) range of the CMS exempt list.

Can Q74.2 be reported with Q65.89?

Not as a rule. The Excludes1 note on Q74.2 lists "anteversion of femur (neck) (Q65.89)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).

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.