Excludes1 pair
N29 vs N35.1-
N29 and N35.1 are not coded together. ICD-10-CM declares them mutually exclusive with an Excludes1 note — the two conditions are not expected to occur together, so exactly one of them is normally correct for a given encounter. The Official Guidelines carve out one exception: if the two conditions are clearly unrelated to each other, both may be reported.
N29
Other disorders of kidney and ureter in diseases classified elsewhere
Billable
- Chapter 14
- Diseases of the genitourinary system
- Section
- N25-N29
Indexed under
- Nephrocalcinosis
- Calcification › kidney › tuberculous
- Degeneration, degenerative › kidney › amyloid
- Disorder › ureter › schistosomiasis
- Disease, diseased › kidney › in › schistosomiasis (bilharziasis)
N35.1
Postinfective urethral stricture, not elsewhere classified
Not billable
- Chapter 14
- Diseases of the genitourinary system
- Section
- N30-N39
Excludes1 is not always absolute: where two conditions covered by the note are genuinely unrelated, CMS guidance permits reporting both. Document the reasoning rather than assuming it. More on Excludes1 vs Excludes2 · FY2027