C83.91Billable
Non-follicular (diffuse) lymphoma, unspecified, lymph nodes of head, face, and neck
Short description: Non-follic lymphoma, unsp, nodes of head, face, and neck
- Chapter
- 2. Neoplasms
- Category
- C83
- Effective date
- October 1, 2026
Related codes in category C83
C83Non-follicular lymphomaC83.0Small cell B-cell lymphomaC83.00Small cell B-cell lymphoma, unspecified siteYesC83.01Small cell B-cell lymphoma, nodes of head, face, and neckYesC83.02Small cell B-cell lymphoma, intrathoracic lymph nodesYesC83.03Small cell B-cell lymphoma, intra-abdominal lymph nodesYesC83.04Small cell B-cell lymphoma, nodes of axilla and upper limbYesC83.05Small cell B-cell lymph, nodes of ing region and lower limbYesC83.06Small cell B-cell lymphoma, intrapelvic lymph nodesYesC83.07Small cell B-cell lymphoma, spleenYesC83.08Small cell B-cell lymphoma, lymph nodes of multiple sitesYesC83.09Small cell B-cell lymphoma, extranodal and solid organ sitesYes
Frequently asked questions
What is ICD-10 code C83.91?
C83.91 is an ICD-10-CM diagnosis code for Non-follicular (diffuse) lymphoma, unspecified, lymph nodes of head, face, and neck.
Is C83.91 a billable code?
Yes. C83.91 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is C83.91 in?
C83.91 falls under Chapter 2: Neoplasms.
When did C83.91 become effective?
C83.91 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to C83.91?
C83.91 belongs to category C83, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.