N28.8Other specified disorders of kidney and ureter

N28.8 is the ICD-10-CM diagnosis code for other specified disorders of kidney and ureter. It belongs to category N28 (other disorders of kidney and ureter, not elsewhere classified), block N25-N29 (other disorders of kidney and ureter) and chapter 14 (diseases of the genitourinary system). It is a header code, so it can't be reported by itself; one of its 7 subcodes must be used instead.

Within N28, choose N28.8 (Other specified disorders of kidney and ureter) only when documentation doesn't support a more specific option: ischemia and infarction of kidney (N28.0), cyst of kidney, acquired (N28.1) and disorder of kidney and ureter, unspecified (N28.9).

To report this condition, pick the subcode that matches the documentation: N28.81 (kidney), N28.82 (Megaloureter), N28.83 (Nephroptosis), N28.84 (cystica), N28.85 (cystica), N28.86 (cystica) and N28.89 (ureter).

Don't report N28.8 together with the conditions in its Excludes1 note: hydroureter (N13.4), ureteric stricture with hydronephrosis (N13.1) and ureteric stricture without hydronephrosis (N13.5).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.