N18.9 Chronic kidney disease, unspecified

Coding notes

From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.

Also covers

• Chronic renal disease
• Chronic renal failure NOS
• Chronic renal insufficiency
• Chronic uremia NOS
• Diffuse sclerosing glomerulonephritis NOS

Excludes2

Not part of this code, but both can be coded when both are documented.

• congenital renal failure (P96.0)
• drug- and heavy-metal-induced tubulo-interstitial and tubular conditions (N14.-)
• extrarenal uremia (R39.2)
• hemolytic-uremic syndrome (D59.3-)
• hepatorenal syndrome (K76.7)
• postpartum hepatorenal syndrome (O90.41)
• posttraumatic renal failure (T79.5)
• prerenal uremia (R39.2)
• renal failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.4)
• renal failure following labor and delivery (O90.41)
• renal failure postprocedural (N99.0)

Code first

Code the underlying condition first, then this code.

• any associated:
• diabetic chronic kidney disease (E08.22, E09.22, E10.22, E11.22, E13.22)
• hypertensive chronic kidney disease (I12.-, I13.-)

Use additional code

Add a second code for the following, when documented.

• code, if applicable, to identify:
• associated cachexia (E88.A)
• kidney transplant status (Z94.0)