C86.20 is the authoritative medical code for Enteropathy-type intestinal T-cell lymphoma not having achieved remission. This classification is used in medical billing and clinical recording to specify the clinical criteria for enteropathy-type intestinal t-cell lymphoma not having achieved remission (ICD-10-CM C86.20), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Enteropathy-type intestinal T-cell lymphoma not having achieved remission is a billable ICD-10-CM diagnosis code C86.20. Inclusion terms: Enteropathy associated T-cell lymphoma NOS; Enteropathy associated T-cell lymphoma not having achieved remission; Enteropathy associated T-cell lymphoma with failed remission; Enteropathy-type intestinal T-cell lymphoma NOS; Enteropathy-type intestinal T-cell lymphoma with failed remission. Excludes1 (not coded here): anaplastic large cell lymphoma, ALK negative C84.7-; anaplastic large cell lymphoma, ALK positive C84.6-; mature T/NK-cell lymphomas C84.-; other specified types of non-Hodgkin lymphoma C85.8-. Excludes2 (not included here): Kaposi's sarcoma of lymph nodes C46.3; secondary and unspecified neoplasm of lymph nodes C77.-; secondary neoplasm of bone marrow C79.52; secondary neoplasm of spleen C78.89.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for C86.20 in the official ICD-10-CM tabular list.
Inclusion Terms
Alternative terms the tabular list files under this code.
- Enteropathy associated T-cell lymphoma NOS
- Enteropathy associated T-cell lymphoma not having achieved remission
- Enteropathy associated T-cell lymphoma with failed remission
- Enteropathy-type intestinal T-cell lymphoma NOS
- Enteropathy-type intestinal T-cell lymphoma with failed remission
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- anaplastic large cell lymphoma, ALK negative C84.7-
- anaplastic large cell lymphoma, ALK positive C84.6-
- mature T/NK-cell lymphomas C84.-
- other specified types of non-Hodgkin lymphoma C85.8-
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- Kaposi's sarcoma of lymph nodes C46.3
- secondary and unspecified neoplasm of lymph nodes C77.-
- secondary neoplasm of bone marrow C79.52
- secondary neoplasm of spleen C78.89
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with C86.20?
Per Excludes1 instructions, C86.20 must not be reported with: anaplastic large cell lymphoma, ALK negative (C84.7-); anaplastic large cell lymphoma, ALK positive (C84.6-); mature T/NK-cell lymphomas (C84.-); other specified types of non-Hodgkin lymphoma (C85.8-).
Can C86.20 be reported alongside related conditions?
Per Excludes2 instructions, C86.20 and the following may both be reported when both are present: Kaposi's sarcoma of lymph nodes (C46.3); secondary and unspecified neoplasm of lymph nodes (C77.-); secondary neoplasm of bone marrow (C79.52); secondary neoplasm of spleen (C78.89).
What conditions are included under C86.20?
Enteropathy-type intestinal T-cell lymphoma not having achieved remission includes: Enteropathy associated T-cell lymphoma NOS; Enteropathy associated T-cell lymphoma not having achieved remission; Enteropathy associated T-cell lymphoma with failed remission; Enteropathy-type (intestinal) T-cell lymphoma NOS; Enteropathy-type (intestinal) T-cell lymphoma with failed remission.
Codes in This Family (21)
Official ICD-10-CM classifications in the same code family as C86.20, with their registry titles.
- C86 — Other specified types of T/NK-cell lymphoma
- C86.0 — Extranodal NK/T-cell lymphoma, nasal type
- C86.00 — Extranodal NK/T-cell lymphoma, nasal type not having achieved remission
- C86.01 — Extranodal NK/T-cell lymphoma, nasal type, in remission
- C86.1 — Hepatosplenic T-cell lymphoma
- C86.10 — Hepatosplenic T-cell lymphoma not having achieved remission
- C86.11 — Hepatosplenic T-cell lymphoma, in remission
- C86.2 — Enteropathy-type (intestinal) T-cell lymphoma
- C86.21 — Enteropathy-type (intestinal) T-cell lymphoma, in remission
- C86.3 — Subcutaneous panniculitis-like T-cell lymphoma
- 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
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code C82.20
Follicular lymphoma grade III, unspecified, unspecified site
ICD Code C85.20
Mediastinal (thymic) large B-cell lymphoma, unspecified site