Q65.6 Congenital unstable hip

The ICD-10-CM code for Congenital unstable hip is Q65.6 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

17: Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0)

Section

Q65-Q79: Congenital malformations and deformations of the musculoskeletal system (Q65-Q79)

Category Q65

19 codes (15 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to Q65.6:

• Preluxation, hip, congenital
• Predislocation status of hip at birth
• Subluxatable hip
• Dislocatable hip, congenital
• Unstable › hip (congenital)

Inclusion Terms

• Congenital dislocatable hip

U.S. Hospital Utilization

• An estimated 685 U.S. inpatient stays in 2023 included Q65.6 among the documented diagnoses.
• 60 stays listed it as the principal diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

POA indicator for congenital conditions/anomalies and Q00-Q99 exception

Congenital conditions and anomalies Assign “Y” for congenital conditions and anomalies except for categories Q00- Q99, Congenital anomalies, which are on the exempt list. Congenital conditions are always considered present on admission.

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)

Cite This Page

Reference Q65.6 with the canonical source and edition:

Q65.6 — Congenital unstable hip. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/Q65.6

Canonical URL: https://icd10codingpro.com/codes/Q65.6