Viral conjunctivitis
In Other viral diseases (B25-B34), chapter 1: Certain Infectious and Parasitic Diseases
6 billable codes under B30: none are a CC or MCC; none map to an HCC.
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Instructional notes
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Rules for coding infections and parasitic diseases, including HIV, organism and drug resistance codes, sepsis and septic shock, MRSA, Zika, and COVID-19.
- Human Immunodeficiency Virus (HIV) Infections (page 19)
- Infectious agents as the cause of diseases classified to other chapters (page 22)
- Infections resistant to antibiotics (page 22)
- Sepsis, Severe Sepsis, and Septic Shock (page 23)
- Methicillin Resistant Staphylococcus aureus (MRSA) Conditions (page 27)
- Zika virus infections (page 28)
- Coronavirus infections (page 28)
All codes under B30
B30 can't be used on a claim. Pick a billable code below; grey headings group them.
B30 MS-DRGs
As the principal diagnosis, all 6 billable codes under B30 group to MS-DRG 124 or 125 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.
Other codes that refer to B30
Notes on these codes point to B30.
- H10.23 Excludes1: viral conjunctivitis (B30.-)
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Pink Eye
Conjunctivitis is the medical name for pink eye. It involves inflammation of the outer layer of the eye and inside of the eyelid. It can cause swelling, itching, burning, discharge, and redness. Causes include:
Read more about pink eye on MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.