Skip to content
HCC Buddy home

H21.549

Billable

Posterior synechiae (iris), unspecified eye

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

What This Code Means

Adhesions between the iris and lens in an unspecified eye, where the iris becomes stuck to the back of the lens due to inflammation or injury.

Coding Tips

  • •Use this code only when the specific eye (right, left, or bilateral) is not documented; query the provider if laterality is available
  • •Posterior synechiae often result from uveitis or trauma and may require documentation of the underlying cause

Code Hierarchy

└H21Other disorders of iris and ciliary body└H21.5Other and unspecified adhesions and disruptions of iris and ciliary body└H21.54Posterior synechiae (iris)└H21.549Posterior synechiae (iris), unspecified eye
└H21.549Posterior synechiae (iris), unspecified eye

Open H21.549 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