2025 ICD-10-CM Diagnosis Code C86.61

Primary cutaneous CD30-positive T-cell proliferations, in remission

ICD-10-CM Code:: C86.61
ICD-10 Code for:: Primary cutaneous CD30-positive T-cell prolif, in remission
Is Billable?: Yes - Valid for Submission
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C86.61 is a billable diagnosis code used to specify a medical diagnosis of primary cutaneous cd30-positive t-cell proliferations, in remission. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2024 through September 30, 2025.

ICD-10-CM Codes Adjacent to C86.61

C86.30 - Subcutaneous panniculitis-like T-cell lymphoma not having achieved remission
C86.31 - Subcutaneous panniculitis-like T-cell lymphoma, in remission
C86.4 - Blastic NK-cell lymphoma
C86.40 - Blastic NK-cell lymphoma not having achieved remission
C86.41 - Blastic NK-cell lymphoma, in remission
C86.5 - Angioimmunoblastic T-cell lymphoma
C86.50 - Angioimmunoblastic T-cell lymphoma not having achieved remission
C86.51 - Angioimmunoblastic T-cell lymphoma, in remission
C86.6 - Primary cutaneous CD30-positive T-cell proliferations
C86.60 - Primary cutaneous CD30-positive T-cell proliferations not having achieved remission
C86.61 - Primary cutaneous CD30-positive T-cell proliferations, in remission
C88 - Malignant immunoproliferative diseases and certain other B-cell lymphomas
C88.0 - Waldenstrom macroglobulinemia
C88.00 - Waldenstrom macroglobulinemia not having achieved remission
C88.01 - Waldenstrom macroglobulinemia, in remission
C88.2 - Heavy chain disease
C88.20 - Heavy chain disease not having achieved remission
C88.21 - Heavy chain disease, in remission
C88.3 - Immunoproliferative small intestinal disease
C88.30 - Immunoproliferative small intestinal disease not having achieved remission
C88.31 - Immunoproliferative small intestinal disease, in remission

Table of Contents

Code Information
2025 ICD-10 Code
Tabular List of Diseases and Injuries
Diagnostic Related Groups Mapping
Replacement Code
Patient Education
Other Codes Used Similar Conditions
Code History

Code Classification

Neoplasms
(C00–D49)
- Malignant neoplasms of lymphoid, hematopoietic and related tissue
  (C81-C96)
  - Other specified types of T/NK-cell lymphoma
    (C86)

Neoplasms (C00–D49)

A00–B99 - Certain infectious and parasitic diseases
C00–D49 - Neoplasms
D50–D89 - Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
E00–E89 - Endocrine, nutritional and metabolic diseases
F01–F99 - Mental and behavioural disorders
G00–G99 - Diseases of the nervous system
H00–H59 - Diseases of the eye and adnexa
H60–H95 - Diseases of the ear and mastoid process
I00–I99 - Diseases of the circulatory system
J00–J99 - Diseases of the respiratory system
K00–K95 - Diseases of the digestive system
L00–L99 - Diseases of the skin and subcutaneous tissue
M00–M99 - Diseases of the musculoskeletal system and connective tissue
N00–N99 - Diseases of the genitourinary system
O00-O9A - Pregnancy, childbirth and the puerperium
P00–P96 - Certain conditions originating in the perinatal period
Q00-Q99 - Congenital malformations, deformations and chromosomal abnormalities
R00–R99 - Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
S00–T88 - Injury, poisoning and certain other consequences of external causes
V01–Y99 - External causes of morbidity and mortality
Z00–Z99 - Factors influencing health status and contact with health services
U00–U85 - Codes for Special Purposes

Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96)

C00-C14 - Malignant neoplasms of lip, oral cavity and pharynx
C15-C26 - Malignant neoplasms of digestive organs
C30-C39 - Malignant neoplasms of respiratory and intrathoracic organs
C40-C41 - Malignant neoplasms of bone and articular cartilage
C43-C44 - Melanoma and other malignant neoplasms of skin
C45-C49 - Malignant neoplasms of mesothelial and soft tissue
C50 - Malignant neoplasms of breast
C51-C58 - Malignant neoplasms of female genital organs
C60-C63 - Malignant neoplasms of male genital organs
C64-C68 - Malignant neoplasms of urinary tract
C69-C72 - Malignant neoplasms of eye, brain and other parts of central nervous system
C73-C75 - Malignant neoplasms of thyroid and other endocrine glands
C76-C80 - Malignant neoplasms of ill-defined, other secondary and unspecified sites
C7A - Malignant neuroendocrine tumors
C7B - Secondary neuroendocrine tumors
C81-C96 - Malignant neoplasms of lymphoid, hematopoietic and related tissue
D00-D09 - In situ neoplasms
D10-D36 - Benign neoplasms, except benign neuroendocrine tumors
D37-D48 - Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes
D3A - Benign neuroendocrine tumors
D49 - Neoplasms of unspecified behavior

Other specified types of T/NK-cell lymphoma (C86)

C81 - Hodgkin lymphoma
C82 - Follicular lymphoma
C83 - Non-follicular lymphoma
C84 - Mature T/NK-cell lymphomas
C85 - Other specified and unspecified types of non-Hodgkin lymphoma
C86 - Other specified types of T/NK-cell lymphoma
C88 - Malignant immunoproliferative diseases and certain other B-cell lymphomas
C90 - Multiple myeloma and malignant plasma cell neoplasms
C91 - Lymphoid leukemia
C92 - Myeloid leukemia
C93 - Monocytic leukemia
C94 - Other leukemias of specified cell type
C95 - Leukemia of unspecified cell type
C96 - Other and unspecified malignant neoplasms of lymphoid, hematopoietic and related tissue

New 2025 ICD-10-CM Code

C86.61 is new to ICD-10-CM code set for the FY 2025, effective October 1, 2024. The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2024. This is a new and revised code for the FY 2025 (October 1, 2024 - September 30, 2025).

C86.61 is grouped with Diagnostic Related Groups - MS-DRG Mapping

Diagnosis-Related Groups (DRGs) are used to classify hospital cases for billing and healthcare management. They help standardize how hospitals and other providers are reimbursed for inpatient care. Patients are grouped based on their principal diagnosis into broader categories called Major Diagnostic Categories (MDCs).

Once assigned to a DRG, the hospital receives a set payment for the patient’s care, regardless of the actual services provided. This fixed rate is intended to cover the typical cost of treating patients within that group. The payment amount depends on the DRG's relative weight, which reflects the expected complexity and cost of care based on the severity of the patient’s condition.

Diagnostic related groups encourage healthcare providers to focus on quality and efficiency in patient care while managing costs effectively. The diagnosis code is present in the following groups for version MS-DRG V42.0 applicable from 10/01/2024 through 09/30/2025.