N29 vs N35.1
N29 and N35.1 can never be reported together. ICD-10-CM declares them mutually exclusive with an Excludes1 note, meaning the two conditions cannot occur in the same patient — so exactly one of them is correct for any given encounter.
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 (of)
- Disease, diseased › kidney › in › schistosomiasis
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