ICD-10 code for Iritis simplex herpes

The ICD-10-CM code for Iritis simplex herpes is B00.51 (Herpesviral iridocyclitis).

Within B00.5 (herpesviral ocular disease), B00.51 is specifically for herpesviral iridocyclitis. Related codes cover unspecified (B00.50), herpesviral keratitis (B00.52), 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.