2026 ICD-10-CM Diagnosis Code C81.1ANodular sclerosis Hodgkin lymphoma, in remission

ICD-10-CM Codes›C00–D49›C81-C96›C81

ICD-10-CM C81.1A
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

C81.1A is a billable ICD-10-CM diagnosis code for nodular sclerosis Hodgkin lymphoma, in remission. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 820 through 825, 840 through 842. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Hodgkin lymphoma in remission.

Code Identity

ICD-10-CM Code
C81.1A
Billable Status
Yes — Valid for Submission
Code Describes
Nodular sclerosis Hodgkin lymphoma, in remission
Short Description
Nodular sclerosis Hodgkin lymphoma, in remission
Same as the full description in the CMS dataset.
Parent Code
C81.1
Nodular sclerosis Hodgkin lymphoma

Code Classification

ChapterC00–D49Neoplasms
SectionC81-C96Malignant neoplasms of lymphoid, hematopoietic and related tissue
CategoryC81Hodgkin lymphoma
This CodeC81.1ANodular sclerosis Hodgkin lymphoma, in remission

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR NEO076
Hodgkin lymphoma in remission
Default principal diagnosis: inpatient Yes · outpatient Yes

Code History & ChangesHistory

Replacement C81.1A replaces the following previously assigned code(s):

  • Z85.71 - Personal history of Hodgkin lymphoma
FY 2025AddedAdded to the ICD-10-CM code setEffective October 1, 2024.
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About C81.1AOverview

Is C81.1A (Nodular sclerosis Hodgkin lymphoma) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report nodular sclerosis Hodgkin lymphoma, in remission on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does C81.1A group to?

When nodular sclerosis Hodgkin lymphoma, in remission is the principal diagnosis on an inpatient stay, it groups to MS-DRG 820, 821, 822, 823, 824, 825, 840, 841, 842, with relative weights from 1.0104 to 5.8648 depending on complications. Higher weights mean higher Medicare reimbursement.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.