D10.6 vs D14.0
D10.6 and D14.0 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 D14.0
benign neoplasm of posterior margin of septum and choanae (D10.6)
D10.6
Benign neoplasm of nasopharynx
Billable
- Chapter 2
- Neoplasms
- Section
- D10-D36
Use when the record says
- Benign neoplasm of pharyngeal tonsil
- Benign neoplasm of posterior margin of septum and choanae
Indexed under
- Fibroma › nasopharynx, nasopharyngeal
- Angiofibroma › juvenile › unspecified site
- Fibroangioma › juvenile › unspecified site
D14.0
Benign neoplasm of middle ear, nasal cavity and accessory sinuses
Billable
- Chapter 2
- Neoplasms
- Section
- D10-D36
Use when the record says
- Benign neoplasm of cartilage of nose
Indexed under
- Papilloma › Schneiderian › unspecified site
- Schneiderian › papilloma › unspecified site
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