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ICD-10 Guide
ICD-10 CodesB02.23

B02.23

Postherpetic polyneuropathy

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 B02.23 is a billable code used to indicate a diagnosis of postherpetic polyneuropathy.

Key Diagnostic Point:

Postherpetic polyneuropathy (PHP) is a complication that arises following an outbreak of herpes zoster, commonly known as shingles. This condition is characterized by persistent pain and sensory abnormalities in the affected dermatomes long after the rash has resolved. The underlying mechanism involves damage to the sensory nerves due to the varicella-zoster virus (VZV), which remains dormant in the dorsal root ganglia after the initial chickenpox infection. Reactivation of the virus leads to shingles, and in some patients, this can result in neuropathic pain that can last for months or even years. The pain is often described as burning, stabbing, or aching and can be accompanied by allodynia, where even light touch can provoke pain. Risk factors for developing PHP include older age, severity of the initial shingles episode, and immunocompromised states. Management typically involves pain relief strategies, including medications such as anticonvulsants, antidepressants, and topical agents. Understanding the clinical presentation and management of PHP is crucial for accurate coding and treatment planning.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires understanding of the relationship between herpes zoster and postherpetic neuralgia.
  • Differentiation from other neuropathic pain conditions.
  • Documentation must specify the duration and severity of symptoms.
  • Potential for overlapping diagnoses with other neuropathies.

Audit Risk Factors

  • Inadequate documentation of the duration and severity of symptoms.
  • Failure to link the diagnosis to the prior herpes zoster infection.
  • Misclassification of PHP as other types of neuropathy.
  • Lack of evidence for the chronicity of symptoms.

Specialty Focus

Medical Specialties

Neurology

Documentation Requirements

Detailed neurological examination findings, including sensory and motor assessments.

Common Clinical Scenarios

Patients presenting with chronic pain following a shingles outbreak.

Billing Considerations

Documentation should include the patient's pain scale and impact on daily activities.

Pain Management

Documentation Requirements

Comprehensive pain assessments and treatment plans.

Common Clinical Scenarios

Management of neuropathic pain with pharmacological and non-pharmacological interventions.

Billing Considerations

Consideration of multimodal pain management strategies and their documentation.

Coding Guidelines

Inclusion Criteria

Use B02.23 When
  • According to ICD
  • CM guidelines, B02
  • 23 should be used when the patient has a documented history of herpes zoster and presents with symptoms consistent with postherpetic polyneuropathy
  • It is important to ensure that the diagnosis is supported by clinical findings and that the condition is not confused with other neuropathies

Exclusion Criteria

Do NOT use B02.23 When
No specific exclusions found.

Related CPT Codes

64400CPT Code

Injection, anesthetic agent into a major nerve or branch

Clinical Scenario

Used for pain management in patients with postherpetic polyneuropathy.

Documentation Requirements

Document the specific nerve targeted and the patient's response to previous treatments.

Specialty Considerations

Pain management specialists should ensure comprehensive pain assessments are included.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of postherpetic polyneuropathy, improving the accuracy of data collection and reimbursement processes. This specificity helps in understanding the epidemiology of the condition and tailoring treatment approaches.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of postherpetic polyneuropathy, improving the accuracy of data collection and reimbursement processes. This specificity helps in understanding the epidemiology of the condition and tailoring treatment approaches.

Reimbursement & Billing Impact

reimbursement processes. This specificity helps in understanding the epidemiology of the condition and tailoring treatment approaches.

Resources

Clinical References

  • •
    CDC - Shingles (Herpes Zoster)

Coding & Billing References

  • •
    CDC - Shingles (Herpes Zoster)

Frequently Asked Questions

What is the difference between postherpetic neuralgia and postherpetic polyneuropathy?

Postherpetic neuralgia refers specifically to the pain that persists after a shingles outbreak, while postherpetic polyneuropathy includes broader sensory abnormalities and nerve damage that may accompany the pain.