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ICD-10 Guide
ICD-10 CodesM21.051

M21.051

Billable

Valgus deformity, not elsewhere classified, right hip

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

Code Description

ICD-10 M21.051 is a billable code used to indicate a diagnosis of valgus deformity, not elsewhere classified, right hip.

Key Diagnostic Point:

Valgus deformity of the right hip refers to a condition where the hip joint is angled outward, leading to an abnormal alignment of the lower limb. This acquired deformity can result from various factors, including trauma, degenerative joint disease, or post-surgical changes. Patients may experience pain, limited range of motion, and difficulty with weight-bearing activities. The condition can lead to compensatory changes in gait and posture, potentially resulting in secondary issues in the knee and ankle joints. Treatment options may include physical therapy, orthotic devices, and in some cases, surgical intervention to correct the alignment. The diagnosis of valgus deformity is typically made through clinical examination and imaging studies, such as X-rays, which help assess the degree of deformity and rule out other underlying conditions. Accurate coding is essential for appropriate management and reimbursement, as it reflects the complexity of the patient's condition and the necessity for targeted treatment.

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 impact on function
  • Potential for co-existing conditions affecting the hip joint
  • Differentiation from other types of deformities (e.g., varus)

Audit Risk Factors

  • Insufficient documentation of the deformity's impact on mobility
  • Lack of imaging studies to support the diagnosis
  • Inconsistent terminology used in clinical notes
  • Failure to document previous treatments or interventions

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Detailed clinical notes including physical examination findings, imaging results, and treatment plans.

Common Clinical Scenarios

Patients presenting with hip pain, limited mobility, or post-operative complications related to hip surgery.

Billing Considerations

Ensure that the documentation clearly states the side affected and the degree of deformity.

Physical Therapy

Documentation Requirements

Progress notes detailing functional assessments, treatment interventions, and patient responses.

Common Clinical Scenarios

Patients undergoing rehabilitation for hip valgus deformity post-surgery or due to conservative management.

Billing Considerations

Document specific exercises and their impact on the patient's functional abilities.

Coding Guidelines

Inclusion Criteria

Use M21.051 When
  • According to ICD
  • 10 guidelines, M21
  • 051 should be used when the valgus deformity is not classified elsewhere
  • Coders must ensure that the documentation supports the diagnosis and that the condition is not a result of congenital factors or other specified conditions

Exclusion Criteria

Do NOT use M21.051 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 M21.051, improving the accuracy of patient records and facilitating better management of valgus deformities.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of conditions like M21.051, improving the accuracy of patient records and facilitating better management of valgus deformities.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of conditions like M21.051, improving the accuracy of patient records and facilitating better management of valgus deformities.

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 significance of specifying the right hip in the code M21.051?

Specifying the right hip is crucial for accurate diagnosis and treatment planning, as it affects the choice of interventions and the understanding of the patient's functional limitations.