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v1.0.0
ICD-10 Guide
DiagnosesPostherpetic Neuralgia

Postherpetic Neuralgia

ICD-10 Coding for Postherpetic Neuralgia(B02.22, B02.29)

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

Diagnosis Overview

What is Postherpetic Neuralgia?
Essential facts and insights about Postherpetic Neuralgia

Key Clinical Considerations:

  • Persistent pain following herpes zoster infection, typically localized to the dermatomes affected by the rash.
  • Diagnosis is supported by the history of shingles and the presence of neuropathic pain symptoms.
  • Physical examination may reveal allodynia, hyperesthesia, or other sensory abnormalities in the affected area.

Clinical Information

Clinical Criteria & Documentation Requirements

  • Document the history of herpes zoster, duration of pain, and pain characteristics.
  • Use specific terminology such as 'postherpetic neuralgia' and 'neuropathic pain' in documentation.
  • Examples include noting the onset of pain after shingles and describing pain severity using scales.

Coding Guidelines

Usage Guidelines & Examples

  • Follow usage guidelines for coding postherpetic neuralgia to avoid miscoding.
  • Common errors include using incorrect codes for related conditions or failing to document the history of shingles.

Code Exclusions

Important Exclusions

  • Conditions such as diabetic neuropathy or fibromyalgia that may present with similar symptoms.
  • Alternative codes for other types of neuropathic pain should not be used.

Related ICD-10 Codes

Primary Codes
G53.0
Postherpetic neuralgia
Ancillary Codes
G89.21
G89.0
Differential Codes
B02.29
B02.29
for non-trigeminal nerve involvement.
B02.22
B02.22
for trigeminal nerve involvement.

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Neurology

Specialty Applications

  • Older adults, individuals with a history of shingles, and patients with chronic pain syndromes.
  • Clinical settings include neurology clinics, pain management centers, and primary care.

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 the history of herpes zoster, pain characteristics, and duration.

What are the billing considerations?

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