Skip to content
HCC Buddy home

A36.86

Billable

Diphtheritic conjunctivitis

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

This is an eye infection (conjunctivitis) caused by diphtheria bacteria, which affects the clear membrane covering the white part of the eye and inner eyelids. It is a serious bacterial infection that requires prompt medical treatment.

Coding Tips

  • •This code is part of the diphtheria family (A36.x codes) and should only be used when diphtheria bacteria is confirmed as the cause of the conjunctivitis, not for other bacterial causes of eye inflammation
  • •Verify documentation confirms diphtheritic etiology and conjunctival involvement; consider if additional codes are needed for systemic diphtheria manifestations (A36.0-A36.85) if present

Code Hierarchy

└A36Diphtheria└A36.8Other diphtheria└A36.86Diphtheritic conjunctivitis
└A36.86Diphtheritic conjunctivitis

Open A36.86 in the Interactive Encoder

See full code details, AI coding tips, HCC mappings, and related codes in our interactive encoder. Start your 14-day Pro trial — no credit card required.

Open in EncoderStart 14-Day Pro Trial