C31.1
BillableMalignant neoplasm of ethmoidal sinus
Malignant neoplasm of ethmoidal sinus
Coding Notes
Includes
Conditions included under this code
- malignant neoplasm of middle ear
Related Codes(5)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(65)
SNOMED CT
- Primary malignant neoplasm of ethmoidal sinus93787005
- Malignant neoplasm of ethmoid sinus363426009
- Malignant tumor of ethmoid sinus363426009
- Malignant tumour of ethmoid sinus363426009
- Malignant melanoma of ethmoid sinus698285005
- Malignant melanoma of ethmoidal sinus698285005
- Melanoma of ethmoidal sinus698285005
- Primary adenocarcinoma of accessory sinus707337006
- Primary adenocarcinoma of ethmoidal sinus707342003
- Primary carcinoma of ethmoidal sinus707346000
- Malignant melanoma of accessory sinus707350007
- Melanoma of accessory sinus707350007
- Primary squamous cell carcinoma of accessory sinus707353009
- Squamous cell carcinoma of accessory sinus707353009
- Primary squamous cell carcinoma of ethmoidal sinus707359008
- Adenocarcinoma of accessory sinus1255092002
- Adenocarcinoma of ethmoidal sinus1255096004
- Carcinoma of ethmoidal sinus1260035002
- Squamous cell carcinoma of ethmoidal sinus1260046004
UMLS
- Malignant Ethmoid Sinus NeoplasmC0153477
- Malignant Ethmoid Sinus TumorC0153477
- Malignant Ethmoidal Sinus NeoplasmC0153477
- Malignant Ethmoidal Sinus TumorC0153477
- Malignant Neoplasm of Ethmoid SinusC0153477
- Malignant Neoplasm of Ethmoidal SinusC0153477
- Malignant Neoplasm of the Ethmoid SinusC0153477
- Malignant Neoplasm of the Ethmoidal SinusC0153477
- Malignant Tumor of Ethmoid SinusC0153477
- Malignant Tumor of Ethmoidal SinusC0153477
- Malignant Tumor of the Ethmoid SinusC0153477
- Malignant Tumor of the Ethmoidal SinusC0153477
- Malignant neoplasm of ethmoid sinusC0153477
- Malignant neoplasm of ethmoid sinus (disorder)C0153477
- Malignant neoplasm of ethmoidal sinusC0153477
- Malignant tumor of ethmoid sinusC0153477
- Malignant tumour of ethmoid sinusC0153477
Clinical Terms
- Primary squamous cell carcinoma of accessory sinus
- Malignant Ethmoidal Sinus Neoplasm
- Malignant Neoplasm of Ethmoid Sinus
- Carcinoma of ethmoidal sinus
- Malignant Neoplasm of the Ethmoid Sinus
- Malignant Ethmoid Sinus Neoplasm
- Malignant Ethmoid Sinus Tumor
- Primary carcinoma of ethmoidal sinus
- Primary squamous cell carcinoma of ethmoidal sinus
- Malignant tumor of ethmoid sinus
- Adenocarcinoma of accessory sinus
- Primary adenocarcinoma of accessory sinus
- Malignant Tumor of the Ethmoid Sinus
- Malignant neoplasm of ethmoid sinus (disorder)
- Adenocarcinoma of ethmoidal sinus
- Malignant Tumor of the Ethmoidal Sinus
- Malignant Ethmoidal Sinus Tumor
- Malignant melanoma of accessory sinus
- Malignant melanoma of ethmoid sinus
- Malignant Tumor of Ethmoidal Sinus
- Primary adenocarcinoma of ethmoidal sinus
- Malignant Neoplasm of the Ethmoidal Sinus
- Squamous cell carcinoma of accessory sinus
- Malignant tumour of ethmoid sinus
- Melanoma of ethmoidal sinus
- Squamous cell carcinoma of ethmoidal sinus
- Melanoma of accessory sinus
- Primary malignant neoplasm of ethmoidal sinus
- Malignant melanoma of ethmoidal sinus
Frequently Asked Questions
What is the ICD-10 code for malignant neoplasm of ethmoidal sinus?
The ICD-10-CM code for malignant neoplasm of ethmoidal sinus is C31.1. The full clinical description is "Malignant neoplasm of ethmoidal sinus". C31.1 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code C31.1 mean?
ICD-10-CM code C31.1 represents “Malignant neoplasm of ethmoidal sinus”. It is classified under Chapter 2: Neoplasms and is a billable/specific code that can be used on a claim.
Is C31.1 a billable code?
Yes, C31.1 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is C31.1 in?
C31.1 is in Chapter 2: Neoplasms (codes C00-D49).
What codes cannot be used with C31.1?
C31.1 has Excludes1 notes indicating codes that cannot be used together with it, including: mesothelioma (C45.-).
What SNOMED CT codes does C31.1 map to?
C31.1 maps to 13 SNOMED CT concepts: 1255092002, 1255096004, 1260035002, 707350007, 698285005, and 8 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for C31.1?
C31.1 is linked to 1 UMLS Concept Unique Identifier: C0153477. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does C31.1 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like malignant neoplasm of ethmoidal sinus 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.
What is the ICD-11 equivalent of C31.1?
C31.1 maps to the ICD-11 code: 2C22.Z (Malignant neoplasms of accessory sinuses, unspecified).
Automate ICD-10 Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.
Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.