Diagnosis Code C31.3
Information for Medical Professionals
- 160.5 - Mal neo sphenoid sinus
- Malignant melanoma of accessory sinus
- Malignant melanoma of sphenoidal sinus
- Malignant tumor of sphenoid sinus
- Primary adenocarcinoma of accessory sinus
- Primary adenocarcinoma of sphenoidal sinus
- Primary carcinoma of sphenoidal sinus
- Primary malignant neoplasm of sphenoidal sinus
- Primary squamous cell carcinoma of accessory sinus
- Primary squamous cell carcinoma of sphenoidal sinus
Table of Neoplasms
The code C31.3 is included in the table of neoplasms by anatomical site. For each site there are six possible code numbers according to whether the neoplasm in question is malignant, benign, in situ, of uncertain behavior, or of unspecified nature. The description of the neoplasm will often indicate which of the six columns is appropriate.
Where such descriptors are not present, the remainder of the Index should be consulted where guidance is given to the appropriate column for each morphological (histological) variety listed. However, the guidance in the Index can be overridden if one of the descriptors mentioned above is present.
The Tabular must be reviewed for the complete diagnosis code.
Information for Patients
Also called: Cancer of the nasal cavity, Cancer of the paranasal sinus
Your paranasal sinuses are small hollow spaces around the nose. They are lined with cells that make mucus, which keeps your nose from drying out. The nasal cavity is the passageway just behind your nose. Air passes through it on the way to your throat as you breathe.
Cancer of the nasal cavity and paranasal sinuses is rare. You are at greater risk if you are
- Male and over 40 years old
- Exposed to certain workplace chemicals
- Infected with HPV
- A smoker
There may be no symptoms at first, and later symptoms can be like those of infections. Doctors diagnose nasal cancer with imaging tests, lighted tube-like instruments that look inside the nose, and biopsies. Treatment options include surgery, radiation, and chemotherapy.
NIH: National Cancer Institute
- After chemotherapy - discharge (Medical Encyclopedia)
- Understanding Chemotherapy - NIH - Easy-to-Read (National Cancer Institute)
- What to Know about External Beam Radiation Therapy - NIH - Easy-to-Read (National Cancer Institute)
General Equivalence Map Definitions
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
- Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
- No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
- Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.
Present on Admission
The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement.