ICD-10-CM 2027
ICD-10 code for renal retinitis
From the official ICD-10-CM alphabetic index entry “Retinitis › renal”. Page updated September 29, 2026.
About coding renal retinitis
The ICD-10-CM code for renal retinitis is N18.9 (Chronic kidney disease, unspecified).
Within N18, choose N18.9 (Chronic kidney disease, unspecified) only when documentation doesn't support a more specific option: chronic kidney disease, stage 1 (N18.1), chronic kidney disease, stage 2 (mild) (N18.2), chronic kidney disease, stage 3 (moderate) (N18.3), chronic kidney disease, stage 4 (severe) (N18.4), chronic kidney disease, stage 5 (N18.5) and end stage renal disease (N18.6).
Code first any associated: diabetic chronic kidney disease (E08.22, E09.22, E10.22, E11.22, E13.22) and hypertensive chronic kidney disease (I12.-, I13.-).
Use an additional code, if applicable, to identify: associated cachexia (E88.A) and kidney transplant status (Z94.0).
Common questions about renal retinitis ICD-10 codes
What is the ICD-10 code for renal retinitis?
- N18.9 — Chronic kidney disease, unspecified.
Is N18.9 billable?
- Yes. N18.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N18.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N18.9 as a principal diagnosis.
Is N18.9 a CC or MCC?
- No. N18.9 is neither a CC nor an MCC under MS-DRG v44.0.