Chronic kidney disease (CKD)
Non-billable header
N18 is a non-billable header code. Use one of the more specific codes below.
Excludes2
Not included here — may be reported together when both conditions exist.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- 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
Sequence the underlying condition first.
Use additional code
Add a code to identify the following, if applicable.
More specific codes N18
- N18.1Chronic kidney disease, stage 1Billable
- N18.2Chronic kidney disease, stage 2 (mild)Billable
- N18.3Chronic kidney disease, stage 3 (moderate)Header
- N18.4Chronic kidney disease, stage 4 (severe)Billable
- N18.5Chronic kidney disease, stage 5Billable
- N18.6End stage renal diseaseBillable
- N18.9Chronic kidney disease, unspecifiedBillable