ICD-10-CM 2027
ICD-10 code for keratitis herpes
From the official ICD-10-CM alphabetic index entry “Herpes, herpesvirus, herpetic › keratitis (simplex) (dendritic) (disciform) (interstitial)”. Page updated September 29, 2026.
About coding keratitis herpes
The ICD-10-CM code for keratitis herpes is B00.52 (Herpesviral keratitis). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on B00.52.
Within B00.5 (herpesviral ocular disease), B00.52 is specifically for herpesviral keratitis. Related codes cover unspecified (B00.50), herpesviral iridocyclitis (B00.51), herpesviral conjunctivitis (B00.53) and other herpesviral disease of eye (B00.59).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
In MS-DRG v44.0, it is part of the grouping logic for DRG 124 (Other Disorders of the Eye with MCC or Thrombolytic Agent, relative weight 1.2471), DRG 125 (Other Disorders of the Eye without MCC, relative weight 0.7702), DRG 791 (Prematurity with Major Problems, relative weight 4.1075), DRG 793 (Full Term Neonate with Major Problems, relative weight 4.2195), DRG 974 (HIV with Major Related Condition with MCC, relative weight 3.0506), DRG 975 (HIV with Major Related Condition with CC, relative weight 1.3252) and 1 more, in MDC 02 (Diseases and Disorders of the Eye), MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period) and MDC 25 (Human Immunodeficiency Virus Infections), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific keratitis herpes codes (official index)
- zoster (interstitial) B02.33 — Zoster keratitis
Common questions about keratitis herpes ICD-10 codes
What is the ICD-10 code for keratitis herpes?
- B00.52 — Herpesviral keratitis. More specific codes apply when the documentation supports them: B02.33.
What is the ICD-10 code for zoster keratitis herpes?
- B02.33 — Zoster keratitis.
Is B00.52 billable?
- Yes. B00.52 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can B00.52 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict B00.52 as a principal diagnosis.
Is B00.52 a CC or MCC?
- B00.52 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.