C31.0 is the authoritative medical code for Malignant neoplasm of maxillary sinus. This classification is used in medical billing and clinical recording to specify the clinical criteria for malignant neoplasm of maxillary sinus (ICD-10-CM C31.0), ensuring healthcare documentation aligns with current federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Malignant neoplasm of maxillary sinus is a billable ICD-10-CM diagnosis code C31.0. Includes: malignant neoplasm of middle ear. Inclusion terms: Malignant neoplasm of antrum Highmore maxillary. Excludes1 (not coded here): mesothelioma C45.-.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for C31.0 in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- malignant neoplasm of middle ear
Inclusion Terms
Alternative terms the tabular list files under this code.
- Malignant neoplasm of antrum Highmore maxillary
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with C31.0?
Per official ICD-10-CM Excludes1 instructions, C31.0 must not be reported together with: mesothelioma (C45.-).
What conditions are included under C31.0?
Malignant neoplasm of maxillary sinus includes: Malignant neoplasm of antrum (Highmore) (maxillary).
Nearest Codes in This Family
Official ICD-10-CM classifications closest to C31.0 in its code family, with their registry titles.
- C31 — Malignant neoplasm of accessory sinuses
- C31.1 — Malignant neoplasm of ethmoidal sinus
- C31.2 — Malignant neoplasm of frontal sinus
- C31.3 — Malignant neoplasm of sphenoid sinus
- C31.8 — Malignant neoplasm of overlapping sites of accessory sinuses
- C31.9 — Malignant neoplasm of accessory sinus, unspecified
Neoplasm Table Sites (4)
Anatomical sites from the official ICD-10-CM Table of Neoplasms that map to this code, with the matching behavior column.
- Neoplasm, neoplastic, antrum (Highmore) (maxillary) — Malignant, Primary
- Neoplasm, neoplastic, maxilla, maxillary (superior), antrum — Malignant, Primary
- Neoplasm, neoplastic, maxilla, maxillary (superior), sinus — Malignant, Primary
- Neoplasm, neoplastic, sinus (accessory), maxillary — Malignant, Primary