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H21.519

Billable

Anterior synechiae (iris), unspecified eye

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

What This Code Means

Anterior synechiae refers to abnormal adhesions (scar tissue connections) between the iris and the cornea or lens in the eye. This condition can restrict eye movement and potentially affect vision or eye pressure.

Coding Tips

  • Verify documentation specifies 'unspecified eye' before assigning code H21.519; if the eye is documented as right, left, or bilateral, use the more specific codes H21.511 (right eye) or H21.512 (left eye)
  • Anterior synechiae is often a complication of uveitis, trauma, or surgery, so review the medical record for the underlying cause which may need to be coded separately

Code Hierarchy

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