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v1.0.0
ICD-10 Guide
ICD-10 CodesM21.852

M21.852

Billable

Other specified acquired deformities of left thigh

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

Code Description

ICD-10 M21.852 is a billable code used to indicate a diagnosis of other specified acquired deformities of left thigh.

Key Diagnostic Point:

Acquired deformities of the left thigh can arise from various conditions, including trauma, surgical interventions, or diseases that alter the normal anatomy of the thigh. These deformities may manifest as changes in bone structure, muscle atrophy, or abnormal joint alignment. Common causes include fractures that heal improperly, infections leading to osteomyelitis, or conditions such as arthritis that can lead to joint deformities. Patients may present with symptoms such as pain, reduced mobility, and visible deformities. Treatment often involves physical therapy, corrective surgery, or orthopedic interventions to restore function and alleviate discomfort. Accurate diagnosis and documentation are crucial for appropriate coding and reimbursement, as these deformities can significantly impact a patient's quality of life and functional abilities.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of potential underlying causes for acquired deformities
  • Need for precise documentation of the deformity's nature and extent
  • Differentiation from congenital deformities and other related codes
  • Potential for multiple co-existing conditions affecting the thigh

Audit Risk Factors

  • Inadequate documentation of the deformity's cause
  • Failure to specify the exact nature of the deformity
  • Incorrect coding of associated conditions
  • Lack of clarity in treatment plans and outcomes

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Detailed descriptions of the deformity, treatment plans, and outcomes.

Common Clinical Scenarios

Post-fracture deformities, post-surgical complications, and degenerative joint changes.

Billing Considerations

Ensure that all relevant imaging and diagnostic tests are documented to support the diagnosis.

Physical Medicine and Rehabilitation

Documentation Requirements

Functional assessments, treatment goals, and progress notes.

Common Clinical Scenarios

Rehabilitation following orthopedic surgery or trauma.

Billing Considerations

Documenting the impact of the deformity on the patient's daily activities and quality of life.

Coding Guidelines

Inclusion Criteria

Use M21.852 When
  • Follow the official ICD
  • CM coding guidelines, ensuring that the code is used only when the deformity is acquired and not congenital
  • Document the specific nature of the deformity and any associated conditions

Exclusion Criteria

Do NOT use M21.852 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

27447CPT Code

Osteotomy, femur

Clinical Scenario

Used for correcting deformities of the femur.

Documentation Requirements

Operative reports detailing the procedure and indications.

Specialty Considerations

Orthopedic surgeons must document pre-operative assessments and post-operative outcomes.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of acquired deformities, improving the accuracy of patient records and reimbursement processes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of acquired deformities, improving the accuracy of patient records and reimbursement processes.

Reimbursement & Billing Impact

reimbursement processes.

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 documentation is required for coding M21.852?

Documentation must include a detailed description of the deformity, its cause, treatment plan, and any associated conditions.