FY2027
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Excludes1 pair

C30.0 vs C76.0

C30.0 and C76.0 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.

The official note, declared on C30.0
malignant neoplasm of nose NOS (C76.0)
C30.0

Malignant neoplasm of nasal cavity

Billable
Chapter 2
Neoplasms
Section
C30-C39
Use when the record says
  • Malignant neoplasm of cartilage of nose
  • Malignant neoplasm of nasal concha
  • Malignant neoplasm of internal nose
  • Malignant neoplasm of septum of nose
  • Malignant neoplasm of vestibule of nose
Indexed under
  • Esthesioneuroblastoma
  • Esthesioneurocytoma
  • Esthesioneuroepithelioma
  • Neuroblastoma › olfactory
  • Neuroepithelioma › olfactory
C76.0

Malignant neoplasm of head, face and neck

Billable
Chapter 2
Neoplasms
Section
C76-C80
Use when the record says
  • Malignant neoplasm of cheek NOS
  • Malignant neoplasm of nose NOS

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