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v1.0.0
ICD-10 Guide
DiagnosesLower Extremity Radiculopathy

Lower Extremity Radiculopathy

ICD-10 Coding for Lower Extremity Radiculopathy(M54.16, M51.16)

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

Diagnosis Overview

What is Lower Extremity Radiculopathy?
Essential facts and insights about Lower Extremity Radiculopathy

Key Clinical Considerations:

  • Pain, numbness, or weakness in the lower extremities
  • Positive straight leg raise test
  • MRI or CT findings of lumbar disc herniation or spinal stenosis

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient history including onset and duration of symptoms
  • Neurological examination findings
  • Imaging results and their interpretation

Coding Guidelines

Usage Guidelines & Examples

  • Follow guidelines for coding radiculopathy based on the affected region.
  • Common errors include using incorrect codes for non-specific back pain.

Code Exclusions

Important Exclusions

  • Peripheral neuropathy
  • Other spinal disorders not related to radiculopathy

Related ICD-10 Codes

Primary Codes
M54.16
Radiculopathy, lumbar region
M54.17
Radiculopathy, sacral and coccygeal region
Ancillary Codes
G89.29
Differential Codes
M54.31
M54.32
M54.16

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Neurology

Specialty Applications

  • Adults with lumbar spine issues
  • Neurology and pain management clinics

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 imaging results.

Billing considerations?

Ensure accurate coding to reflect the specific level of radiculopathy and associated conditions.