2027 ICD-10-CM Diagnosis Code B02.29Other postherpetic nervous system involvement

ICD-10-CM Codes›A00–B99›B00-B09›B02

ICD-10-CM B02.29
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

B02.29 is a billable ICD-10-CM diagnosis code for other postherpetic nervous system involvement. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 73 through 74, 791, 793, 974 through 976. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 34 closely related codes. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Viral infection.

B02.29 does not risk-adjust for Medicare Advantage under the CMS-HCC V28 model. It still risk-adjusts in the RxHCC Part D (V08) category 168 for payment year 2027.

Code Identity

ICD-10-CM Code
B02.29
Billable Status
Yes — Valid for Submission
Code Describes
Other postherpetic nervous system involvement
Short Description
Other postherpetic nervous system involvement
Same as the full description in the CMS dataset.
Parent Code
B02.2
Zoster with other nervous system involvement

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionB00-B09Viral infections characterized by skin and mucous membrane lesions
CategoryB02Zoster [herpes zoster]
This CodeB02.29Other postherpetic nervous system involvement

Medicare Risk Adjustment (HCC)Billing

B02.29 does not risk-adjust for Medicare Advantage under the CMS-HCC V28 model, but it maps to payment categories in the other CMS models shown below.

CMS-HCC V28 (Medicare Advantage Payment Model)
Not mapped
no payment category in the model that pays 100% of MA risk scores
Prior Model (CMS-HCC V24)
Not mapped under V24
this diagnosis newly risk-adjusts under the V28 model
Part D (RxHCC)
RxHCC 168 — Trigeminal and Postherpetic Neuralgia
also risk-adjusts in the Part D prescription drug model (V08)

Source: CMS Payment Year 2027 risk adjustment mappings and model software. Weights are relative factors, not dollar amounts; a beneficiary's total RAF also includes demographics and interactions. Browse all CMS-HCC categories.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acute glossopharyngeal herpes zoster neuropathy
  • Acute herpes zoster neuropathy
  • Cervical dermatome herpes zoster infection
  • Cervical radiculitis
  • Cranial neuropathy due to Herpes zoster
  • Herpes zoster dermatitis
  • Herpes zoster radiculitis
  • Infection of sacrum
  • Intercostal neuralgia
  • Intercostal neuropathy
  • Intercostal post-herpetic neuralgia
  • Motor neuron disease due to herpes zoster
  • Postherpetic neuralgia
  • Post-herpetic neuritis
  • Postinfectious neuralgia
  • Postinfective intercostal neuralgia
  • Postinfective peripheral neuralgia
  • Sacral herpes zoster infection
  • Structural abnormality of glossopharyngeal nerve
  • Thoracic herpes zoster infection
  • Thoracic radiculitis

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to B02.29: its own notes plus those printed at B02 and Chapter 1. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From B02 Zoster [herpes zoster] applies to 16 codes
  • shingles
  • zona
From Chapter 1 (A00-B99) Certain infectious and parasitic diseases applies to 1,068 codes
  • diseases generally recognized as communicable or transmissible

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Postherpetic radiculopathy

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 1 (A00-B99) Certain infectious and parasitic diseases applies to 1,068 codes
  • carrier or suspected carrier of infectious disease (Z22.-)
  • certain localized infections - see body system-related chapters
  • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
  • infectious and parasitic diseases specific to the perinatal period (P35-P39)
  • influenza and other acute respiratory infections (J00-J22)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From Chapter 1 (A00-B99) Certain infectious and parasitic diseases applies to 1,068 codes
  • code to identify resistance to antimicrobial drugs (Z16.-)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name B02.29, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming B02.29: they are not reported together with it, unless the two conditions are unrelated.

  • H94.0 Acoustic neuritis in infectious and parasitic diseases classified elsewhere
    herpes zoster (B02.29)

Excludes2 4

These codes carry an Excludes2 note naming B02.29: its condition is not part of those codes, and both may be reported when the patient has both.

  • B10 Other human herpesviruses
    herpes zoster (B02.-) names B02.-, which includes this code
  • B10 Other human herpesviruses
    human herpesvirus 3 (B01.-, B02.-) names B02.-, which includes this code
  • B10 Other human herpesviruses
    zoster (B02.-) names B02.-, which includes this code
  • Block L00-L08 Infections of the skin and subcutaneous tissue
    zoster (B02.-) names B02.-, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR INF008
Viral infection
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Neuralgia, Postherpetic

    pain in nerves, frequently involving facial skin, resulting from the activation the latent varicella-zoster virus (herpesvirus 3, human). the two forms of the condition preceding the pain are herpes zoster oticus; and herpes zoster ophthalmicus. following the healing of the rashes and blisters, the pain sometimes persists.

Patient EducationClinical

Shingles

Shingles (herpes zoster) is an infection that causes a painful rash. It is caused by the varicella-zoster virus (VZV). This is the same virus that causes chickenpox. After you have chickenpox, the virus stays in your body. It may not cause problems for many years. But as you get older, the virus may become active again and cause shingles.

The full article covers:

  • What is shingles?
  • Is shingles contagious?
  • Who is at risk for shingles?
  • What are the symptoms of shingles?
  • What other problems can shingles cause?
  • How is shingles diagnosed?
  • What are the treatments for shingles?
  • Can shingles be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert B02.29 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
053.10 H zoster nerv syst NOS
Approximate The match is approximate rather than exact.
ICD-9-CM
053.19 H zoster nerv syst NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About B02.29Overview

What is the ICD-10 code for other postherpetic nervous system involvement?

The ICD-10-CM code for other postherpetic nervous system involvement is B02.29 (sometimes written as B0229). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is B02.29 (Zoster with other nervous system involvement) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other postherpetic nervous system involvement on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does B02.29 group to?

When other postherpetic nervous system involvement is the principal diagnosis on an inpatient stay, it groups to MS-DRG 793, 791, 974, 74, 976, 73, 975, with relative weights from 0.7879 to 4.2192 depending on complications. Higher weights mean higher Medicare reimbursement.

Is B02.29 a CC or MCC?

CMS lists B02.29 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 34 closely related codes in its exclusion list.

What is the ICD-9 equivalent of B02.29?

Under the General Equivalence Mappings, other postherpetic nervous system involvement converts to ICD-9-CM 053.10 (h zoster nerv syst NOS) and 053.19 (h zoster nerv syst NEC). The mapping is approximate, so confirm the match fits the documentation.

Does B02.29 risk-adjust for Medicare Advantage payment?

Not for Medicare Advantage: B02.29 maps to no category in the CMS-HCC V28 model. It still risk-adjusts in the RxHCC Part D (V08) category 168 (Trigeminal and Postherpetic Neuralgia).