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v1.0.0
ICD-10 Guide
DiagnosesPiriformis Syndrom

Piriformis Syndrom

ICD-10 Coding for Piriformis Syndrome(G57.01, G57.02, M62.85)

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

Diagnosis Overview

What is Piriformis Syndrom?
Essential facts and insights about Piriformis Syndrome

Key Clinical Considerations:

  • Pain in the buttock region, often radiating down the leg
  • Positive straight leg raise test
  • Tenderness over the piriformis muscle

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient history including onset and duration of symptoms
  • Physical examination findings related to the hip and lower back
  • Imaging results if applicable (e.g., MRI, CT)

Coding Guidelines

Usage Guidelines & Examples

  • Ensure correct application of G57.0 for piriformis syndrome; avoid using codes for other types of sciatica.
  • Common errors include misdiagnosing as lumbar radiculopathy.

Code Exclusions

Important Exclusions

  • Lumbar disc herniation, sacroiliac joint dysfunction
  • M54.3 (sciatica) may be used for other causes of sciatica

Related ICD-10 Codes

Primary Codes
G57.0
Sciatica due to piriformis syndrome
Ancillary Codes
M79.1
Differential Codes
M54.30
G57.01

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Orthopedics

Specialty Applications

  • Adults aged 30-50, athletes, individuals with prolonged sitting occupations
  • Orthopedic clinics, physical therapy settings

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

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

Documentation requirements?

Include detailed patient history, physical exam findings, and any imaging results.

Billing considerations?

Ensure accurate coding to reflect the diagnosis and any associated treatments.