2026 ICD-10-CM Diagnosis Code B02.32Zoster iridocyclitis

ICD-10-CM Codes›A00–B99›B00-B09›B02

ICD-10-CM B02.32
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

B02.32 is a billable ICD-10-CM diagnosis code for zoster iridocyclitis. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 124 through 125, 974 through 976. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified eye disorders and Viral infection.

Code Identity

ICD-10-CM Code
B02.32
Billable Status
Yes — Valid for Submission
Code Describes
Zoster iridocyclitis
Short Description
Zoster iridocyclitis
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 CodeB02.32Zoster iridocyclitis

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Bilateral herpes zoster iridocyclitis
  • Bilateral iritis of eyes caused by Human alphaherpesvirus 3
  • Disorder of left trigeminal nerve
  • Disorder of right trigeminal nerve
  • Herpes zoster iridocyclitis
  • Herpes zoster iritis
  • Herpetic iridocyclitis
  • Infectious secondary iridocyclitis
  • Infectious secondary iritis
  • Iridocyclitis of bilateral eyes
  • Iridocyclitis of left eye due to herpes zoster
  • Iridocyclitis of right eye due to herpes zoster
  • Iritis of left eye caused by herpes zoster virus
  • Iritis of right eye caused by herpes zoster virus

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Herpes, herpesvirus, herpetic
      • iridocyclitis (simplex)
        • zoster
    • Iridocyclitis
      • herpes, herpetic (simplex)
        • zoster
    • Iridocyclitis
      • in (due to)
        • herpes (simplex) virus
          • zoster
    • Iridocyclitis
      • in (due to)
        • zoster

Clinical ClassificationClinical

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

CCSR EYE012
Other specified eye disorders
Default principal diagnosis: inpatient Yes · outpatient Yes
CCSR INF008
Viral infection
Default principal diagnosis: inpatient No · outpatient No

Patient EducationClinical

Eye Infections

Your eyes can get infections from bacteria, fungi, or viruses. Eye infections can occur in different parts of the eye and can affect just one eye or both. Two common eye infections are:

Read the full article at MedlinePlus

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

Convert B02.32 to ICD-9-CMHistory

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

ICD-9-CM
053.22 H zoster iridocyclitis
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About B02.32Overview

Is B02.32 (Zoster ocular disease) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report zoster iridocyclitis on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does B02.32 group to?

When zoster iridocyclitis is the principal diagnosis on an inpatient stay, it groups to MS-DRG 124, 125, 974, 975, 976, with relative weights from 0.7678 to 2.8860 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of B02.32?

Under the General Equivalence Mappings, zoster iridocyclitis converts to ICD-9-CM 053.22 (h zoster iridocyclitis). The mapping is a direct match.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.