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v1.0.0
ICD-10 Guide
DiagnosesAnkle Pain

Ankle Pain

ICD-10 Coding for Ankle Pain(M25.571, M25.572)

PRIMARY SPECIALTYOrthopedics
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Ankle Pain?
Essential facts and insights about Ankle Pain

Key Clinical Considerations:

  • Patient reports pain in the ankle region, which may be localized or diffuse.
  • Swelling, tenderness, or bruising observed during physical examination.
  • Range of motion may be limited due to pain or mechanical obstruction.
  • Imaging studies (X-ray, MRI) may reveal fractures, sprains, or other abnormalities.
  • Severity of pain may be assessed using a pain scale (0-10) to determine impact on function.

Clinical Information

Clinical Criteria & Documentation Requirements

  • Document the location, duration, and characteristics of the pain.
  • Use specific terminology such as 'ankle sprain', 'tendonitis', or 'osteoarthritis'.
  • Examples include: 'Patient presents with right ankle pain and swelling after a fall.'
  • Medical necessity must be established, indicating why the diagnosis warrants treatment.
  • Quality measures may include documentation of pain assessment and functional limitations.

Coding Guidelines

Usage Guidelines & Examples

  • Use M25.571 for right ankle pain and M25.572 for left ankle pain based on the affected side.
  • Do not use these codes for generalized foot pain or conditions affecting other joints.
  • Compare with codes like M76.81 (Achilles tendinitis) for related conditions.
  • Common errors include misidentifying the side of pain or failing to specify the type of pain.
  • In complex cases, ensure to document any underlying conditions that may affect coding.

Code Exclusions

Important Exclusions

  • Excludes conditions like fractures (S82) and dislocations (S93) which have separate codes.
  • Alternative codes for excluded conditions include S93.4 for ankle sprains.
  • Conditions are excluded to ensure accurate representation of the specific diagnosis.
  • Common mistakes include using ankle pain codes for unrelated foot conditions.
  • Related but distinct conditions may include plantar fasciitis (M72.2) or tarsal tunnel syndrome (G57.61).

Related ICD-10 Codes

Primary Codes
M25.571
Pain in right ankle and joints of right foot
M25.572
Pain in left ankle and joints of left foot
Ancillary Codes
R26.89
Differential Codes
M19.071
M19.072

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Orthopedics

Specialty Applications

  • Applies to patients with acute or chronic ankle pain due to various etiologies.
  • Patient populations include athletes, elderly individuals, and those with prior injuries.
  • Clinical settings include outpatient orthopedic clinics, emergency departments, and rehabilitation centers.
  • Specialty-specific applications are relevant in orthopedics, sports medicine, and physical therapy.
  • Treatment contexts may involve conservative management or surgical interventions.

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

  • Comprehensive clinical documentation
  • Accurate code selection based on clinical criteria
  • Proper exclusion considerations
  • Specialty-specific coding guidelines

Documentation

Documentation Templates

Template 1

Template: 'Patient diagnosed with ankle pain based on clinical findings of swelling and tenderness.'

Template 2

Template: 'Clinical presentation consistent with right ankle pain including limited range of motion.'

Template 3

Template: 'Diagnostic criteria for ankle pain met as evidenced by MRI showing soft tissue injury.'

Template 4

Template: 'Treatment plan initiated for ankle pain with physical therapy and NSAIDs.'

Template 5

Template: 'Follow-up care for ankle pain including monitoring of pain levels and mobility.'

Billing Information

Billing Considerations

  • Ensure proper documentation for billing
  • Verify code specificity requirements
  • Check for any additional codes needed
  • Review payer-specific guidelines

Common Issues

  • Insufficient clinical documentation
  • Incorrect code selection
  • Missing supporting diagnoses
  • Timing and frequency documentation

Frequently Asked Questions

What documentation is required for this diagnosis?

Detailed documentation should include patient history, physical exam findings, and any imaging results.

How does this differ from similar diagnoses?

Ankle pain is specifically localized to the ankle joint, while other codes may refer to pain in the foot or leg.

What are common billing considerations?

Ensure that the diagnosis is supported by clinical documentation to optimize reimbursement.

What procedures are typically associated?

Common CPT codes include 99213 for office visits and 73610 for ankle X-rays.

Are there any quality reporting implications?

Quality measures may include tracking functional outcomes and pain management effectiveness.