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ICD-10 Guide
ICD-10 CodesM21.052

M21.052

Billable

Valgus deformity, not elsewhere classified, left hip

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/17/2025

Code Description

ICD-10 M21.052 is a billable code used to indicate a diagnosis of valgus deformity, not elsewhere classified, left hip.

Key Diagnostic Point:

Valgus deformity of the left hip refers to a condition where the hip joint is angled outward, resulting in an abnormal alignment of the lower limb. This acquired deformity can arise from various factors, including trauma, degenerative joint disease, or post-surgical changes. Patients may present with symptoms such as pain, instability, and difficulty in ambulation. The condition can lead to secondary complications, including osteoarthritis due to altered biomechanics. Valgus deformities can also affect the knee and ankle joints, leading to a chain reaction of musculoskeletal issues. Treatment options may include physical therapy, orthotic devices, and in severe cases, surgical intervention to correct the alignment. Accurate diagnosis often requires imaging studies, such as X-rays or MRIs, to assess the degree of deformity and plan appropriate management.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and severity of the deformity
  • Need for detailed documentation of the deformity's cause and impact
  • Potential for co-existing conditions affecting coding
  • Differentiation from similar codes related to other joint deformities

Audit Risk Factors

  • Inadequate documentation of the deformity's etiology
  • Failure to specify laterality (left vs. right)
  • Lack of supporting imaging studies in the medical record
  • Inconsistent coding of associated conditions

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Detailed clinical notes describing the deformity, imaging results, and treatment plan.

Common Clinical Scenarios

Patients presenting with hip pain and altered gait due to valgus deformity.

Billing Considerations

Ensure accurate laterality and severity are documented to support the diagnosis.

Physical Therapy

Documentation Requirements

Progress notes detailing functional limitations and response to therapy.

Common Clinical Scenarios

Rehabilitation of patients post-corrective surgery for valgus deformity.

Billing Considerations

Document specific therapeutic interventions and patient progress to justify continued treatment.

Coding Guidelines

Inclusion Criteria

Use M21.052 When
  • Follow official ICD
  • 10 coding guidelines, ensuring accurate documentation of the condition's etiology, laterality, and any associated conditions
  • Include imaging results and treatment plans to support the diagnosis

Exclusion Criteria

Do NOT use M21.052 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

27447CPT Code

Osteotomy, femur, for correction of deformity

Clinical Scenario

Used in cases where surgical correction of the valgus deformity is indicated.

Documentation Requirements

Pre-operative assessment, imaging studies, and surgical notes detailing the procedure.

Specialty Considerations

Orthopedic surgeons must document the rationale for surgery and expected outcomes.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of conditions like valgus deformity, improving the accuracy of patient records and facilitating better treatment planning.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of conditions like valgus deformity, improving the accuracy of patient records and facilitating better treatment planning.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of conditions like valgus deformity, improving the accuracy of patient records and facilitating better treatment planning.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What is the primary cause of a valgus deformity?

Valgus deformities can arise from various factors, including trauma, degenerative diseases, or post-surgical changes. Identifying the underlying cause is crucial for effective treatment.