2027 ICD-10-CM Diagnosis Code B02.34Zoster scleritis

ICD-10-CM Codes›A00–B99›B00-B09›B02

ICD-10-CM B02.34
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

B02.34 is a billable ICD-10-CM diagnosis code for zoster scleritis. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 124 through 125, 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 6 closely related codes. Coders also document this condition as bilateral herpes zoster scleritis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Cornea and external disease and Viral infection.

Code Identity

ICD-10-CM Code
B02.34
Billable Status
Yes — Valid for Submission
Code Describes
Zoster scleritis
Short Description
Zoster scleritis
Same as the full description in the CMS dataset.
Parent Code
B02.3
Zoster ocular disease

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionB00-B09Viral infections characterized by skin and mucous membrane lesions
CategoryB02Zoster [herpes zoster]
This CodeB02.34Zoster scleritis

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Bilateral herpes zoster scleritis
  • Herpes zoster scleritis
  • Herpes zoster scleritis of left eye
  • Herpes zoster scleritis of right eye

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to B02.34: 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

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 B02.34, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming B02.34: they are not reported together with it, unless the two conditions are unrelated.

  • B30 Viral conjunctivitis
    ocular zoster (B02.3) names B02.3, which includes this code

Excludes2 4

These codes carry an Excludes2 note naming B02.34: 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 EYE001
Cornea and external disease
Default principal diagnosis: inpatient Yes · outpatient Yes
CCSR INF008
Viral infection
Default principal diagnosis: inpatient No · outpatient No

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 B02.34 to ICD-9-CMHistory

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

ICD-9-CM
053.29 Herpes zoster of eye 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 B02.34Overview

What is the ICD-10 code for zoster scleritis?

The ICD-10-CM code for zoster scleritis is B02.34 (sometimes written as B0234). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is B02.34 (Zoster ocular disease) a billable code?

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

What MS-DRG does B02.34 group to?

When zoster scleritis is the principal diagnosis on an inpatient stay, it groups to MS-DRG 793, 791, 974, 125, 976, 975, 124, with relative weights from 0.7699 to 4.2192 depending on complications. Higher weights mean higher Medicare reimbursement.

Is B02.34 a CC or MCC?

CMS lists B02.34 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 6 closely related codes in its exclusion list.

What is the ICD-9 equivalent of B02.34?

Under the General Equivalence Mappings, zoster scleritis converts to ICD-9-CM 053.29 (herpes zoster of eye NEC). The mapping is approximate, so confirm the match fits the documentation.