2026 ICD-10-CM Diagnosis Code Q68.2Congenital deformity of knee

ICD-10-CM Codes›Q00-Q99›Q65-Q79›Q68

ICD-10-CM Q68.2
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Q68.2 is a billable ICD-10-CM diagnosis code for congenital deformity of knee. 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
Q68.2
Billable Status
Yes — Valid for Submission
Code Describes
Congenital deformity of knee
Short Description
Congenital deformity of knee
Same as the full description in the CMS dataset.
Parent Code
Q68
Other congenital musculoskeletal deformities

Code Classification

ChapterQ00-Q99Congenital malformations, deformations and chromosomal abnormalities
SectionQ65-Q79Congenital malformations and deformations of the musculoskeletal system
CategoryQ68Other congenital musculoskeletal deformities
This CodeQ68.2Congenital deformity of knee

Present on Admission (POA)Billing

Q68.2 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.

  • Bilateral congenital knee dislocation
  • Congenital deformity of bilateral knee joints
  • Congenital deformity of knee joint
  • Congenital deformity of left knee joint
  • Congenital deformity of right knee joint
  • Congenital dislocation of knee
  • Congenital dislocation of knee grade I
  • Congenital dislocation of knee grade II
  • Congenital dislocation of knee grade III
  • Congenital dislocation of knee with genu recurvatum
  • Congenital dislocation of left knee
  • Congenital dislocation of patella
  • Congenital dislocation of right knee
  • Congenital dislocation of right patella
  • Congenital extension contracture of the knee
  • Congenital flexion contracture of knee
  • Congenital genu recurvatum
  • Congenital genu recurvatum of bilateral knees
  • Congenital genu recurvatum of left knee
  • Congenital genu recurvatum of right knee
  • Congenital hyperextension of limb
  • Contracture of knee joint
  • Flexion contracture of the knee
  • Genu recurvatum and long leg bone bowing

Tabular List NotesGuidance

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

Inclusion Terms

  • Congenital dislocation of knee
  • Congenital genu recurvatum

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.

    • Deformity
      • knee (acquired) NEC
        • congenital
    • Dislocation(articular)
      • knee
        • congenital
    • Genu
      • recurvatum (acquired)
        • congenital

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 Q68.2 to ICD-9-CMHistory

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

ICD-9-CM
754.40 Cong genu recurvatum
Approximate The match is approximate rather than exact.
ICD-9-CM
754.41 Cong knee dislocation
Approximate The match is approximate rather than exact.
ICD-9-CM
755.64 Cong knee deformity
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 Q68.2Overview

Is Q68.2 (Other congenital musculoskeletal deformities) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report congenital deformity of knee on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does Q68.2 group to?

When congenital deformity of knee 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 Q68.2 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 congenital deformity of knee on inpatient claims.

What is the ICD-9 equivalent of Q68.2?

Under the General Equivalence Mappings, congenital deformity of knee converts to ICD-9-CM 754.40 (cong genu recurvatum), 754.41 (cong knee dislocation), and 755.64 (cong knee deformity). 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.