N18 vs T79.5
N18 (Chronic kidney disease (CKD)) compared with T79.5 (Traumatic anuria), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. N18 carries an Excludes2 note covering T79.5: “posttraumatic renal failure (T79.5)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| N18Chronic kidney disease (CKD) | T79.5Traumatic anuria | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | N00-N99 — Diseases of the Genitourinary System (N00-N99) | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) |
| Definition | Chronic kidney disease (CKD) is a non-billable ICD-10-CM category code (N18). | Traumatic anuria is a non-billable ICD-10-CM category code (T79.5). |
| 7th character | — | The appropriate 7th character is to be added to each code from category T79 |
| Includes | — | Crush syndrome Renal failure following crushing |
| Use additional code | code, if applicable, to identify: associated cachexia (E88.A) kidney transplant status (Z94.0) | — |
| Code first | any associated: diabetic chronic kidney disease (E08.22, E09.22, E10.22, E11.22, E13.22) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources