N99.518 — Other cystostomy complication
Is N99.518 billable?
Yes — N99.518 is billable for FY2027. N99.518 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. N99.518 may be submitted for encounters from October 1, 2026 through September 30, 2027.
N99.518 at a glance
| Code | N99.518 |
|---|---|
| Description | Other cystostomy complication |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does N99.518 group to?
N99.518 sits in MDC 11 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 698Other Kidney and Urinary Tract Diagnoses with MCCmedical
- 699Other Kidney and Urinary Tract Diagnoses with CCmedical
- 700Other Kidney and Urinary Tract Diagnoses without CC/MCCmedical
As a secondary diagnosis, N99.518 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is N99.518 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to N99.518. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Complication › cystostomy (s) (from) (of)
- Complication › cystostomy › specified type NEC (s) (from) (of)
Excludes2 — not included here — inherited from Chapter 14
The conditions below are not part of N99.518, but a patient may have both at the same time. When documentation supports it, N99.518 and the excluded code may both be reported.
- 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)
Excludes2 — not included here — inherited from N99
The conditions below are not part of N99.518, but a patient may have both at the same time. When documentation supports it, N99.518 and the excluded code may both be reported.
Excludes2 — not included here — inherited from N99.5
The conditions below are not part of N99.518, but a patient may have both at the same time. When documentation supports it, N99.518 and the excluded code may both be reported.
- mechanical complication of urinary catheter (T83.0-)
How long has N99.518 existed?
N99.518 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.