C31

The ICD-10-CM code for malignant neoplasm of accessory sinuses is C31. The full clinical description is "Malignant neoplasm of accessory sinuses". C31 is a non-billable header code. Use a more specific child code for billing purposes.

ICD-10-CM code C31 represents “Malignant neoplasm of accessory sinuses”. It is classified under Chapter 2: Neoplasms and is a non-billable header code. Use a more specific child code for billing purposes.

No, C31 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 6 child codes under C31.

C31 is in Chapter 2: Neoplasms (codes C00-D49).

C31 has Excludes1 notes indicating codes that cannot be used together with it, including: mesothelioma (C45.-).

C31 has 6 child codes, including: C31.0 (Malignant neoplasm of maxillary sinus), C31.1 (Malignant neoplasm of ethmoidal sinus), C31.2 (Malignant neoplasm of frontal sinus), C31.3 (Malignant neoplasm of sphenoid sinus), and 2 more.

C31 is linked to 1 UMLS Concept Unique Identifier: C0153474. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like malignant neoplasm of accessory sinuses affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.

C31 maps to the ICD-11 code: 2C22.Z (Malignant neoplasms of accessory sinuses, unspecified).