HealthAssure
HealthAssureGood Life
ICD10

ICD-10 Code C85.9: Non-Hodgkin lymphoma, unspecified

C85.9 is an ICD-10 diagnosis entry used to group records related to Non-Hodgkin lymphoma, unspecified. You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen. ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Neoplasms (C00-D49).

What is this code?

ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Neoplasms (C00-D49).

When is it used?

  • May be used when a clinician documents non-hodgkin lymphoma, unspecified in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
  • This entry may represent a broader category rather than the most specific billable code.

Code hierarchy

chapter
2Neoplasms (C00-D49)
block
C00-C96Malignant neoplasms
block
C81-C96Malignant neoplasms of lymphoid, hematopoietic and related tissue
category
C85Other specified and unspecified types of non-Hodgkin lymphoma
currentC85

Official coding notes

Inclusion terms
  • Lymphoma NOS
  • Malignant lymphoma NOS
  • Non-Hodgkin lymphoma NOS

Where you may see this code

You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.

Related specialists

OncologistGeneral Physician

Coding guidelines

Compatibility

Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
C85.9
Replacement codes
C85.90 — Non-Hodgkin lymphoma, unspecified, unspecified siteC85.91 — Non-Hodgkin lymphoma, unspecified, lymph nodes of head, face, and neckC85.92 — Non-Hodgkin lymphoma, unspecified, intrathoracic lymph nodesC85.93 — Non-Hodgkin lymphoma, unspecified, intra-abdominal lymph nodesC85.94 — Non-Hodgkin lymphoma, unspecified, lymph nodes of axilla and upper limbC85.95 — Non-Hodgkin lymphoma, unspecified, lymph nodes of inguinal region and lower limbC85.96 — Non-Hodgkin lymphoma, unspecified, intrapelvic lymph nodesC85.97 — Non-Hodgkin lymphoma, unspecified, spleenC85.98 — Non-Hodgkin lymphoma, unspecified, lymph nodes of multiple sitesC85.99 — Non-Hodgkin lymphoma, unspecified, extranodal and solid organ sitesC85.9A — Non-Hodgkin lymphoma, unspecified, in remission

Common synonyms

Non-Hodgkin lymphoma, unspecifiedNon-Hodgkin lymphoma

Frequently asked questions

Code details

CodeC85.9
SystemICD10
Display nameNon-Hodgkin lymphoma, unspecified
ChapterNeoplasms (C00-D49)
BlockMalignant neoplasms of lymphoid, hematopoietic and related tissue

Flags

BillableNo
Valid clinical useNo

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.