ICD-10-CM 2027
ICD-10 code for adenoviral conjunctivitis nos
From the official ICD-10-CM alphabetic index entry “Conjunctivitis (staphylococcal) (streptococcal) NOS › adenoviral (acute) (follicular)”. Page updated September 29, 2026.
About coding adenoviral conjunctivitis nos
The ICD-10-CM code for adenoviral conjunctivitis nos is B30.1 (Conjunctivitis due to adenovirus).
Within B30 (viral conjunctivitis), B30.1 is specifically for conjunctivitis due to adenovirus. Related codes cover keratoconjunctivitis due to adenovirus (B30.0), viral pharyngoconjunctivitis (B30.2), acute epidemic hemorrhagic conjunctivitis (enteroviral) (B30.3), other viral conjunctivitis (B30.8) and unspecified (B30.9).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
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) and DRG 125 (Other Disorders of the Eye without MCC, relative weight 0.7702), in MDC 02 (Diseases and Disorders of the Eye), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about adenoviral conjunctivitis nos ICD-10 codes
What is the ICD-10 code for adenoviral conjunctivitis nos?
- B30.1 — Conjunctivitis due to adenovirus.
Is B30.1 billable?
- Yes. B30.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can B30.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict B30.1 as a principal diagnosis.
Is B30.1 a CC or MCC?
- No. B30.1 is neither a CC nor an MCC under MS-DRG v44.0.