B02.29 ICD-10-CM Code: Other postherpetic nervous system involvement
B02.29 is not a CMS-HCC payment code. MEAT criteria · RAF Calculator · free HCC coding tools
HCC Buddy Code Card
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FY 2026 Apr update / Certain infectious and parasitic diseases (A00-B99) / Viral infections characterized by skin and mucous membrane lesions (B00-B09)
B02.29
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceOther postherpetic nervous system involvement
Other nerve system complications following a shingles infection that are not specifically categorized elsewhere.
Buddy Insight
This code captures postherpetic nervous system complications not classified under the more specific codes (geniculate ganglionitis, trigeminal neuralgia, polyneuropathy, or myelitis).
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
HistoricalHistorical
Not used for CY2026 payment
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
MappedHCC 168
Code-level coefficient reference
Code Book Path
Inclusion Terms
Official- Postherpetic radiculopathy
Excludes 2
Official- carrier or suspected carrier of infectious disease (Z22.-)Inherited from A00-B99
- infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)Inherited from A00-B99
- infectious and parasitic diseases specific to the perinatal period (P35-P39)Inherited from A00-B99
- influenza and other acute respiratory infections (J00-J22)Inherited from A00-B99
Related Codes
Includes
Official- diseases generally recognized as communicable or transmissibleInherited from A00-B99, B02
- shinglesInherited from A00-B99, B02
- zonaInherited from A00-B99, B02
Excludes 1
Official- certain localized infections - see body system-related chaptersInherited from A00-B99
Code First
OfficialNo Code First sequencing instructions are included in this display for B02.29. Check the code and parent instructions in the Code Book.
Use Additional
Official- code to identify resistance to antimicrobial drugs (Z16.-)Inherited from A00-B99
Code Also
OfficialNo Code Also instructions are included in this display for B02.29. Check the code and parent instructions in the Code Book.
Buddy Documentation Tip
MEAT Support
Audit Caution
Common Mistakes
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
Is B02.29 an HCC code?
B02.29 is not in the CMS-HCC V28 or V24 community payment model. B02.29 has a separate mapping under the Part D RxHCC model (HCC 168 (Trigeminal and Postherpetic Neuralgia)); the applicable result needs member context.
- Code
- B02.29
- Description
- Other postherpetic nervous system involvement
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF reference coefficient
- —
- Billable
- Yes
- Payment year
- 2026
HCC Category Mapping
These are source-labeled model coefficients, not member totals. A category may still be removed by hierarchy or model cleanup rules. Weights are not directly comparable across models: CMS-HCC V28 and V24 use Community, Non-Dual, Aged; ESRD uses the dialysis continuing-enrollee model; RxHCC is the Part D continuing-enrollee, non-low-income, aged weight (a larger scale than CMS-HCC). ACA/HHS has no single weight — it varies by metal level. Actual per-patient RAF contribution depends on member context, hierarchy and cleanup rules, interactions, and the model year used by the payer. V28 is the CMS-HCC model phased in over payment years 2024–2026; V24 remains available for historical review.
Work B02.29 in the Code Book — tabular path, V28 RAF reference, and MEAT checklist →
MEAT review for B02.29
For B02.29, confirm that the documentation supports the diagnosis and meets the applicable coding, encounter, program and payer requirements. MEAT (Monitor, Evaluate, Assess, or Treat) is a review mnemonic, not a universal CMS coding rule.
- MMonitor: signs, symptoms, disease progression, or lab trending documented in the note
- EEvaluate: test results, medication response, or physical findings reviewed by the provider
- AAssess: explicit mention in the assessment or plan with acknowledgment of status
- TTreat: medication, referral, procedure, therapy, or counseling tied to the diagnosis
Coder workflow notes
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What This Code Means
B02.29 is the ICD-10-CM diagnosis code for other postherpetic nervous system involvement. Other nerve system complications following a shingles infection that are not specifically categorized elsewhere. B02.29 sits in the ICD-10-CM chapter for certain infectious and parasitic diseases (a00-b99), within the section covering viral infections characterized by skin and mucous membrane lesions (b00-b09).
B02.29 has no mapping under the CMS-HCC V28 or V24 community payment models. B02.29 has a separate mapping under the Part D RxHCC model (HCC 168 (Trigeminal and Postherpetic Neuralgia)); the applicable result needs member context. Do not assign V28 risk adjustment value from this page; verify the applicable model and payment year before using this code for risk adjustment.
Use this code only when the postherpetic nervous system complication does not fit B02.21, B02.22, or B02.24.
HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for B02.29 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
Clinical Significance
This code captures postherpetic nervous system complications not classified under the more specific codes (geniculate ganglionitis, trigeminal neuralgia, polyneuropathy, or myelitis). Examples include postherpetic cranial nerve palsies other than facial nerve, autonomic neuropathy, or encephalitis occurring as a late complication of shingles.
Documentation Requirements
- ✓Documented history of herpes zoster with timeline to current symptoms
- ✓Specific neurological complication described that does not fit B02.21-B02.24
- ✓Clinical examination documenting the nervous system involvement
- ✓Reasoning for why more specific postherpetic codes do not apply
- ✓Treatment plan for the specific neurological complication
Commonly Confused Codes
- •B02.21-B02.24: More specific postherpetic nervous system codes; use B02.29 only when the complication does not fit any of these
- •G53 (Cranial nerve disorders in diseases classified elsewhere): May be used as an additional code to specify which cranial nerve is affected
- •B02.0 (Zoster encephalitis): If the complication is postherpetic encephalitis, B02.0 may be more appropriate