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v1.0.0
ICD-10 Guide
DiagnosesMyofascial Pain Syndrome

Myofascial Pain Syndrome

ICD-10 Coding for Myofascial Pain Syndrome(M79.1, G89.4)

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

Diagnosis Overview

What is Myofascial Pain Syndrome?
Essential facts and insights about Myofascial Pain Syndrome

Key Clinical Considerations:

  • Widespread musculoskeletal pain
  • Presence of trigger points
  • Fatigue, sleep disturbances, and cognitive issues

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient history and symptom description
  • Identification of trigger points
  • Treatment plan and response to therapy

Coding Guidelines

Usage Guidelines & Examples

  • Follow guidelines for myofascial pain coding.
  • Common errors include misidentifying trigger points.

Code Exclusions

Important Exclusions

  • Fibromyalgia, chronic fatigue syndrome
  • M79.0 (Rheumatism, unspecified)

Related ICD-10 Codes

Primary Codes
M79.1
Myofascial pain syndrome
Ancillary Codes
G89.4
Differential Codes
M79.7

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Pain Management

Specialty Applications

  • Adults with chronic pain conditions
  • Pain management clinics and 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

What are the documentation requirements?

Document patient history, physical exam findings, and treatment response.

What are the billing considerations?

Ensure accurate coding and documentation to support medical necessity.