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ICD-10 Coding for Medial Malleolus Fracture(S82.51XA, S82.55XG)

Complete ICD-10-CM coding and documentation guide for Medial Malleolus Fracture. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

Inner Ankle FractureTibial Malleolus Fracture

Related ICD-10 Code Ranges

Complete code families applicable to Medial Malleolus Fracture

S82.5-Primary Range

Fracture of the medial malleolus

This range includes all fractures of the medial malleolus, specifying laterality, displacement, and encounter type.

Fractures of other parts of lower leg

Used for bimalleolar and trimalleolar fractures involving the medial malleolus.

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescriptionWhen to UseKey Documentation
S82.51XADisplaced fracture of right medial malleolus, initial encounterUse when the fracture is displaced and involves the right medial malleolus during the initial encounter.
  • X-ray or CT showing >2mm displacement
  • Clinical documentation of displacement
S82.55XGNondisplaced fracture of left medial malleolus, subsequent encounter with delayed healingUse for subsequent encounters when healing is delayed.
  • X-ray showing nondisplacement
  • Clinical notes indicating delayed healing

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: How do you code a medial malleolus fracture?

Essential facts and insights about Medial Malleolus Fracture

Medial malleolus fractures are coded using the S82.5- series, specifying laterality, displacement, and encounter type.

Primary ICD-10-CM Codes for medial malleolus fracture

Displaced fracture of right medial malleolus, initial encounter
Billable Code

Decision Criteria

clinical Criteria

  • Presence of >2mm displacement on imaging

documentation Criteria

  • Explicit mention of 'displaced' in clinical notes

Applicable To

  • Displaced fracture of right medial malleolus

Excludes

  • Nondisplaced fracture of right medial malleolus

Clinical Validation Requirements

  • X-ray or CT showing >2mm displacement
  • Clinical documentation of displacement

Code-Specific Risks

  • Misclassification if displacement is not documented

Coding Notes

  • Ensure documentation specifies displacement and laterality to avoid unspecified coding.

Ancillary Codes

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

Fall from ladder, initial encounter

W11.XXXA
Use to describe the external cause of the fracture.

Aftercare following surgery for fracture

Z47.89
Use for follow-up visits after surgical treatment.

Differential Codes

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

Nondisplaced fracture of left medial malleolus, initial encounter

S82.55XA
Use when fracture is nondisplaced and involves the left medial malleolus.

Displaced fracture of right medial malleolus, initial encounter

S82.51XA
Use when fracture is displaced and involves the right medial malleolus.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Medial Malleolus Fracture to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code S82.51XA.

Impact

Clinical: Inaccurate tracking of healing progress, Regulatory: Non-compliance with coding guidelines, Financial: Potential for incorrect billing and reimbursement

Mitigation Strategy

Regularly update clinical documentation with healing status, Review coding guidelines for 7th character usage

Impact

Reimbursement: Potential for reduced reimbursement due to lack of specificity., Compliance: Increased risk of audit due to unspecified coding., Data Quality: Decreased data quality affecting clinical decision-making.

Mitigation Strategy

Always specify laterality in the code selection.

Impact

Audits may target unspecified fracture codes.

Mitigation Strategy

Ensure all documentation specifies fracture details.

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 Medial Malleolus Fracture, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Medial Malleolus Fracture

Use these documentation templates to ensure complete and accurate documentation for Medial Malleolus Fracture. These templates include all required elements for proper coding and billing.

Initial encounter for displaced fracture

Specialty: Orthopedics

Required Elements

  • Patient history
  • Mechanism of injury
  • Imaging results
  • Treatment plan

Example Documentation

45yo male presents after fall from ladder. X-ray shows displaced transverse fracture of right medial malleolus with 3mm displacement. Skin intact.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Ankle fracture
Good Documentation Example
Displaced fracture of right medial malleolus with 3mm displacement, initial encounter
Explanation
The good example specifies the fracture type, location, and encounter type, ensuring accurate coding.

Need help with ICD-10 coding for Medial Malleolus Fracture? Ask your questions below.

Ask about any ICD-10 CM code, or paste a medical note

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