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ICD-10 Guide
ICD-10 CodesM21.152

M21.152

Billable

Varus deformity, not elsewhere classified, left hip

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

Code Description

ICD-10 M21.152 is a billable code used to indicate a diagnosis of varus deformity, not elsewhere classified, left hip.

Key Diagnostic Point:

Varus deformity of the left hip is characterized by an inward angulation of the femur at the hip joint, leading to a misalignment that can affect gait and overall mobility. This condition can be acquired due to various factors, including trauma, degenerative diseases, or post-surgical changes. Patients may present with symptoms such as pain, stiffness, and a noticeable change in walking patterns. The deformity can lead to secondary complications, including osteoarthritis due to abnormal joint loading. Diagnosis typically involves a thorough clinical examination, imaging studies such as X-rays or MRI, and an assessment of the patient's history. Treatment options may include physical therapy, bracing, or surgical interventions aimed at correcting the alignment and restoring function. Understanding the nuances of varus deformity is essential for accurate coding and appropriate management of the condition.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and severity of the deformity
  • Differentiation from other hip deformities such as valgus deformity
  • Need for precise documentation of the acquired nature of the deformity
  • Potential for associated conditions that may complicate coding

Audit Risk Factors

  • Inadequate documentation of the acquired nature of the deformity
  • Failure to specify laterality (left vs. right)
  • Lack of imaging studies to support the diagnosis
  • Misclassification with other hip deformities

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Detailed clinical notes, imaging results, and treatment plans must be documented.

Common Clinical Scenarios

Patients presenting with hip pain, limited range of motion, or post-surgical complications.

Billing Considerations

Ensure that the documentation clearly states the acquired nature of the deformity and any associated conditions.

Physical Therapy

Documentation Requirements

Progress notes detailing the patient's functional status and response to therapy.

Common Clinical Scenarios

Rehabilitation following surgical correction of varus deformity or conservative management.

Billing Considerations

Document specific therapeutic interventions and outcomes to support the need for ongoing treatment.

Coding Guidelines

Inclusion Criteria

Use M21.152 When
  • According to ICD
  • 10 coding guidelines, M21
  • 152 should be used when the varus deformity is not classified elsewhere
  • Coders must ensure that the documentation supports the diagnosis and includes details about the acquired nature of the deformity

Exclusion Criteria

Do NOT use M21.152 When
  • Exclusion criteria include congenital deformities and other specified conditions

Related ICD-10 Codes

Related CPT Codes

27447CPT Code

Osteotomy, femur, for varus deformity

Clinical Scenario

Used in surgical correction of varus deformity of the hip.

Documentation Requirements

Surgical notes detailing the procedure and indication for surgery.

Specialty Considerations

Orthopedic surgeons must document the rationale for surgical intervention.

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 varus 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 varus 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 varus 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 difference between varus and valgus deformity?

Varus deformity refers to an inward angulation of the limb, while valgus deformity refers to an outward angulation. Both can affect joint alignment and function.