Valid for Submission
H16.321 is a billable diagnosis code used to specify a medical diagnosis of diffuse interstitial keratitis, right eye. The code H16.321 is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 for the submission of HIPAA-covered transactions.
The ICD-10-CM code H16.321 might also be used to specify conditions or terms like diffuse interstitial keratitis, diffuse interstitial keratitis of right eye or interstitial keratitis of right eye.
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Diffuse interstitial keratitis
- Diffuse interstitial keratitis of right eye
- Interstitial keratitis of right eye
Diagnostic Related Groups - MS-DRG Mapping
|MS-DRG||MS-DRG Title||MCD||Relative Weight|
|124||OTHER DISORDERS OF THE EYE WITH MCC||02||1.3988|
|125||OTHER DISORDERS OF THE EYE WITHOUT MCC||02||0.8354|
The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.
Convert H16.321 to ICD-9 Code
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code H16.321 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.
Information for Patients
Your cornea is the outermost layer of your eye. It is clear and shaped like a dome. The cornea helps to shield the rest of the eye from germs, dust, and other harmful matter. It also helps your eye to focus. If you wear contact lenses, they float on top of your corneas.
Problems with the cornea include
- Refractive errors
- Dystrophies - conditions in which parts of the cornea lose clarity due to a buildup of cloudy material
Treatments of corneal disorders include medicines, corneal transplantation, and corneal laser surgery.
NIH: National Eye Institute
[Learn More in MedlinePlus]