Unspecified interstitial keratitis, right eye

This code signifies inflammation of the corneal stroma (the middle layer of the cornea) in the right eye, without a specified underlying cause or specific type of interstitial keratitis. It indicates a non-ulcerative inflammation that does not involve the corneal epithelium or endothelium primarily.

Use this code when documentation indicates interstitial keratitis affecting the right eye, but the physician has not specified the etiology (e.g., syphilitic, herpetic, tuberculous) or a more specific type. This code is appropriate when the clinical picture is consistent with interstitial keratitis, but further diagnostic workup is pending or the specific type remains undetermined.

• Avoid using this code if a more specific type of interstitial keratitis (e.g., H16.31- for diffuse, H16.32- for sclerosing) is documented.
• Always query the provider for clarification if the etiology or specific type of interstitial keratitis is suspected but not explicitly stated.
• Ensure laterality is accurately documented and coded; this code is specific to the right eye.