2025 ICD-10-CM code C11.3

Malignant neoplasm of the anterior wall of the nasopharynx.

Use additional code to identify any functional activity associated with the neoplasm (Chapter 4). An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.If the neoplasm overlaps two or more contiguous sites, code to subcategory .8 'overlapping lesion' unless the combination is indexed elsewhere. Code each site separately for non-contiguous tumors. Malignant neoplasms of ectopic tissue should be coded to the site mentioned (e.g., pancreas for ectopic pancreatic malignancy).

Medical necessity is established by the presence of signs, symptoms, and/or imaging findings suggestive of a malignant neoplasm of the nasopharynx. Biopsy confirmation is essential. Treatment is medically necessary to eradicate the tumor, prevent spread, and alleviate symptoms.

Symptoms may include facial pain, blood in sputum, difficulty speaking, ear pain, deafness, bloody nasal discharge, nasal congestion, and headache.If metastasis is present, there may be a lump or mass in the neck and enlarged lymph nodes. Diagnosis is based on patient history, physical examination, endoscopy, biopsy, blood tests, and EBV testing. Imaging studies such as X-rays, CT scans, MRI, and PET scans are used for diagnosis and staging. Treatment may involve chemotherapy, radiation therapy, and surgery.

In simple words: Cancerous growth in the front part of the nasopharynx (upper part of the throat behind the nose).

Malignant neoplasm of the anterior wall of the nasopharynx (a portion of the throat, or pharynx, that is open to the nasal cavity) refers to a cancerous mass that can spread to other tissues.

Example 1: A 50-year-old male presents with persistent nasal congestion and occasional bloody discharge.After a thorough examination, including nasal endoscopy and biopsy, a diagnosis of malignant neoplasm of the anterior wall of the nasopharynx is confirmed., A 62-year-old female with a history of EBV infection complains of a persistent sore throat and difficulty swallowing.Imaging reveals a malignant tumor on the anterior wall of her nasopharynx., A 45-year-old male presents with a lump in his neck.Further investigation reveals enlarged lymph nodes and a primary tumor located in the anterior wall of the nasopharynx.

Documentation should include details of the patient's presenting symptoms, history (including EBV exposure, family history, and dietary habits), physical exam findings (including examination of nose, throat, ears, and neck), results of endoscopy and biopsy, laboratory test results (blood tests and EBV testing), and imaging findings. The stage of the cancer should be documented according to the TNM staging system.

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