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ICD-10-CM · S82.63AGeneralSystemic

Lateral Malleolus Fracture

Find information on Lateral Malleolus Fracture diagnosis, including clinical documentation, medical coding, ICD-10 codes, and CPT codes. Learn about Weber classification, treatment options, and relevant healthcare resources for proper documentation and coding of lateral malleolar fractures. This resource covers relevant medical terminology, diagnostic criteria, and best practices for accurate clinical documentation and coding related to lateral malleolus fractures.

Also known as
Distal Fibula FractureAnkle Fracture
Definition

Break in the outer ankle bone (fibula).

Clinical signs

Pain, swelling, bruising, difficulty walking, tenderness to touch.

Common settings

Sports injuries, falls, twisting the ankle.

Related Codes

ICD-10 Code Families

Complete code families applicable to S82.63A

S82.5-
Fracture of lateral malleolus
S82.-
Fracture of ankle
S80-S89
Fractures of lower leg
Code Comparison

When to use each related code

DescriptionWhen to use
Lateral Malleolus FractureFracture of the outer ankle bone. Use for isolated fractures or as part of bimalleolar/trimalleolar fractures.
Medial Malleolus FractureFracture of the inner ankle bone. Use for isolated fractures or in combination with other ankle fractures.
Bimalleolar FractureFracture of both the medial and lateral malleoli. Indicates more instability than single malleolar fracture.
Documentation

Best-practice checklist

  • Lateral malleolus fracture ICD-10 diagnosis code
  • Document mechanism of injury (MOI)
  • Laterality (left or right) specified
  • Fracture type: displaced, nondisplaced, open, closed
  • Associated injuries documented, if present
Coding & Audit Risks

Common pitfalls to avoid

Laterality Specificity

Missing or incorrect laterality (right, left, bilateral) can lead to inaccurate coding and claims rejection. Ensure documentation clarity.

Fracture Type Detail

Incomplete documentation of fracture type (e.g., displaced, comminuted) may result in undercoding and lost revenue. CDI should query for specifics.

Associated Injury Coding

Failure to code associated injuries (e.g., ligament tears) with lateral malleolus fractures can impact reimbursement and data accuracy. Review documentation thoroughly.

Mitigation

Best-practice tips

  • 01Document mechanism of injury for accurate ICD-10 coding (S92).
  • 02Specify laterality (left/right) and fracture type for CPT coding.
  • 03Query physician for complete documentation per CDI guidelines.
  • 04Ensure compliant billing with medical necessity validation.
  • 05Correlate imaging reports with clinical findings for compliant documentation.
Clinical Decision Support

Step-by-step checklist

  1. 1

    1. Palpate lateral malleolus: tenderness, edema?

  2. 2

    2. Ottawa Ankle Rules met? X-ray if needed.

  3. 3

    3. X-ray: Fibular fracture visualization?

  4. 4

    4. Weber classification documented? A, B, or C

  5. 5

    5. Neurovascular assessment: CSM intact?

Documentation Template

Ready-to-paste narrative

Patient presents with complaints of right ankle pain and swelling following an inversion injury while playing basketball.  On examination, there is tenderness to palpation over the lateral malleolus, with ecchymosis and edema noted.  Range of motion is limited due to pain.  Weight-bearing is difficult.  Radiographic imaging of the right ankle reveals a non-displaced fracture of the distal fibula, consistent with a lateral malleolus fracture.  Diagnosis of closed lateral malleolus fracture, Weber A classification, is confirmed.  Treatment plan includes immobilization with a short leg cast, RICE therapy (rest, ice, compression, elevation), pain management with ibuprofen, and follow-up with orthopedics in one week.  Patient education provided regarding cast care, weight-bearing restrictions, and signs of complications such as compartment syndrome or deep vein thrombosis.  ICD-10 code S82.401A assigned for closed fracture of the lateral malleolus of right lower leg, initial encounter.  CPT code 27760 may be applicable pending further evaluation by orthopedics.  Patient advised to return to the emergency department if symptoms worsen or new symptoms develop.

Clinical accuracy: This information is provided for documentation and coding guidance and should not replace professional medical judgment.

Coding standard: ICD-10-CM, current FY guidelines.

Lateral Malleolus Fracture - AI Documentation