SEER Inquiry System - Question 20041032 Details

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Produced: 10/08/2026 10:43 AM

Question 20041032

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Inquiry Details

References:

ICD-O-3, 45

Question:

Primary Site--Head & Neck: How is this field coded for a tongue primary described as "located on the lateral" or "left oral" tongue? See Discussion.

Discussion:

Case 1. Patient with squamous cell carcinoma, left oral tongue.

Case 2. Squamous cell carcinoma, left lateral tongue.

Case 3. Patient status post biopsy of lesion on tongue. Exam: healing left lateral tongue incision with sutures in place in underside of tongue.

Answer:

Code Primary Site for cases 1 and 2 above to C023 [Anterior 2/3 of tongue, NOS]. Code lateral tongue without mention of dorsal or ventral surface to C023 [Anterior 2/3 of tongue, NOS].

Code Primary Site for case 3 to C022 [Ventral surface of tongue]. The underside of the tongue is specified as the site of the biopsy in case 3.

Cancer Site Category:

Head & Neck

Data Item Category:

Primary site

Other Category:

N/A

Year:

2004