ICD-10-CM 2027
ICD-10 code for olfactory neuroblastoma
From the official ICD-10-CM alphabetic index entry “Neuroblastoma › olfactory”. Page updated September 29, 2026.
About coding olfactory neuroblastoma
The ICD-10-CM code for olfactory neuroblastoma is C30.0 (Malignant neoplasm of nasal cavity).
Within C30 (malignant neoplasm of nasal cavity and middle ear), C30.0 is specifically for malignant neoplasm of nasal cavity. Related codes cover middle ear (C30.1).
Don't report C30.0 together with the conditions in its Excludes1 note: malignant neoplasm of nasal bone (C41.0), malignant neoplasm of nose NOS (C76.0), malignant neoplasm of olfactory bulb (C72.2-), malignant neoplasm of posterior margin of nasal septum and choana (C11.3) and 3 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Don't confuse with (Excludes1 for C30.0)
- malignant neoplasm of nasal bone (C41.0)
- malignant neoplasm of nose NOS (C76.0)
- malignant neoplasm of olfactory bulb (C72.2-)
- malignant neoplasm of posterior margin of nasal septum and choana (C11.3)
- malignant melanoma of skin of nose (C43.31)
- malignant neoplasm of turbinates (C41.0)
- other and unspecified malignant neoplasm of skin of nose (C44.301, C44.311, C44.321, C44.391)
Common questions about olfactory neuroblastoma ICD-10 codes
What is the ICD-10 code for olfactory neuroblastoma?
- C30.0 — Malignant neoplasm of nasal cavity.
Is C30.0 billable?
- Yes. C30.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can C30.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict C30.0 as a principal diagnosis.
Is C30.0 a CC or MCC?
- No. C30.0 is neither a CC nor an MCC under MS-DRG v44.0.