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ICD-10 Coding for Equinus Contracture(M24.571, M24.572)

Complete ICD-10-CM coding and documentation guide for Equinus Contracture. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

Ankle ContractureGastrocnemius Contracture

Related ICD-10 Code Ranges

Complete code families applicable to Equinus Contracture

M24.57Primary Range

Contracture of joint, ankle and foot

Primary range for acquired equinus contracture affecting the ankle and foot.

Short Achilles tendon

Used for conditions involving a short Achilles tendon, not typically used for equinus contracture.

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescriptionWhen to UseKey Documentation
M24.571Contracture, right ankleUse for acquired contracture of the right ankle with limited dorsiflexion.
  • Goniometric measurement showing ≤5° dorsiflexion with knee extended
  • Silfverskiöld test positive
M24.572Contracture, left ankleUse for acquired contracture of the left ankle with limited dorsiflexion.
  • Goniometric measurement showing ≤5° dorsiflexion with knee extended
  • Silfverskiöld test positive

Clinical Decision Support

Always review the patient's clinical documentation thoroughly. When in doubt, choose the more specific code and ensure documentation supports it.

Key Information: ICD-10 code for equinus contracture

Essential facts and insights about Equinus Contracture

The ICD-10 code for equinus contracture of the right ankle is M24.571, and for the left ankle, it is M24.572.

Primary ICD-10-CM Codes for equinus contracture

Contracture, right ankle
Billable Code

Decision Criteria

clinical Criteria

  • Presence of acquired equinus deformity with joint restriction

Applicable To

  • Acquired equinus deformity

Excludes

  • Congenital equinus deformity (Q66.89)

Clinical Validation Requirements

  • Goniometric measurement showing ≤5° dorsiflexion with knee extended
  • Silfverskiöld test positive

Code-Specific Risks

  • Incorrectly coding as M67.01 for short Achilles tendon

Coding Notes

  • Ensure laterality is specified to avoid unspecified coding.

Ancillary Codes

Additional codes that should be used in conjunction with the main diagnosis codes when applicable.

Plantar fasciitis

M72.2
Use when equinus contracture contributes to plantar fasciitis.

Achilles tendinitis

M76.62
Use when there is associated tendon involvement.

Differential Codes

Alternative codes to consider when ruling out similar conditions to the primary diagnosis.

Short Achilles tendon, right ankle

M67.01
Use when the primary issue is a short Achilles tendon, not joint contracture.

Short Achilles tendon, left ankle

M67.02
Use when the primary issue is a short Achilles tendon, not joint contracture.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Equinus Contracture to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code M24.571.

Impact

Clinical: Ambiguous treatment plans., Regulatory: Potential non-compliance with coding standards., Financial: Claims may be denied for unspecified codes.

Mitigation Strategy

Always document whether the condition affects the right or left side., Use specific ICD-10 codes that include laterality.

Impact

Reimbursement: Incorrect coding may lead to claim denials., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate clinical data representation.

Mitigation Strategy

Ensure the documentation specifies joint contracture, not just a short Achilles tendon.

Impact

Failure to document functional impact may lead to audit findings.

Mitigation Strategy

Include detailed assessments of how the contracture affects mobility and daily activities.

Documentation errors, coding pitfalls, and audit risks are interconnected aspects of medical coding and billing. Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.

Frequently Asked Questions

Common questions about ICD-10 coding for Equinus Contracture, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Equinus Contracture

Use these documentation templates to ensure complete and accurate documentation for Equinus Contracture. These templates include all required elements for proper coding and billing.

Orthopedic evaluation for equinus contracture

Specialty: Orthopedics

Required Elements

  • Dorsiflexion measurements
  • Silfverskiöld test results
  • Functional impact assessment

Example Documentation

Patient presents with right ankle contracture. Dorsiflexion is -5° with knee extended, improving to 10° with knee flexed. Silfverskiöld test positive. Prescribed L4396 AFO due to functional limitation.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Patient has tight calf muscles.
Good Documentation Example
Right ankle dorsiflexion measures -5° via goniometer with knee extended, improving to 10° with knee flexed (Silfverskiöld positive).
Explanation
The good example provides specific measurements and test results, supporting the diagnosis and treatment plan.

Need help with ICD-10 coding for Equinus Contracture? Ask your questions below.

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