Billable / Specific Code
ICD-10-CM C83.390 is the diagnosis code for Primary central nervous system lymphoma. This code falls under the section "Malignant neoplasms of lymphoid, hematopoietic and related tissue" within Chapter 2 — Neoplasms (C00-D49). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as C83.390. They are mutually exclusive:
Understanding where C83.390 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, C83.390 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
C83.390 is the ICD-10-CM diagnosis code for "Primary central nervous system lymphoma". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of C83.390 is C83.39 ("Diffuse large B-cell lymphoma, extranodal and solid organ sites"). C83.390 provides a more specific classification within this category.
C83.390 is located in Section C81-C96 — "Malignant neoplasms of lymphoid, hematopoietic and related tissue" within Chapter 2 of the ICD-10-CM Tabular List.
Use C83.390 when the patients documented diagnosis matches "Primary central nervous system lymphoma" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Primary central nervous system lymphoma is C83.390.
Yes, C83.390 can be used as a primary diagnosis code since it is billable and specific.
C83.390 is in Chapter 2 of the ICD-10-CM Tabular List.
Type 1 Excludes for C83.390 include: Primary central nervous system lymphoma, Burkitt (C83.79); Primary central nervous system lymphoma, lymphoblastic (C83.59); Primary central nervous system lymphoma, other (C83.89) and more.
Yes, C83.390 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.