D40 vs D44
D40 and D44 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.
The official note, declared on D44
neoplasm of uncertain behavior of testis (D40.1-)
D40
Neoplasm of uncertain behavior of male genital organs
Not billable
- Chapter 2
- Neoplasms
- Section
- D37-D48
D44
Neoplasm of uncertain behavior of endocrine glands
Not billable
- Chapter 2
- Neoplasms
- Section
- D37-D48
Indexed under
- Adenoma › endocrine, multiple › two or more specified sites
- Adenoma › multiple endocrine › two or more specified sites
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