C86.00 Extranodal NK/T-cell lymphoma, nasal type not having achieved remission

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applicable to

• Extranodal NK/T-cell lymphoma, nasal type NOS
• Extranodal NK/T-cell lymphoma, nasal type with failed remission

Applies from C86 Other specified types of T/NK-cell lymphoma

Excludes1 (never code together)

• 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-)

Risk adjustment (HCC)

• CMS-HCC V28: HCC 20 — Lung and Other Severe Cancers
• CMS-HCC V22: HCC 10 — Lymphoma and Other Cancers
• RxHCC V08: HCC 21 — Lymphomas and Other Hematologic Cancers
• ESRD V24: HCC 10

MS-DRG index

Defines the logic of DRG(s) 011-013 in MDC PRE.

Code annotations containing back-references to C86.00

Back-references to C86.00

• Type 1 Excludes: C84.Z Other mature T/NK-cell lymphomas ("extranodal NK-cell lymphoma, nasal type (C86.00)")

Back-references to C86.0

• Type 1 Excludes: D76 Other specified diseases with participation of lymphoreticular and reticulohistiocytic tissue ("malignant reticulosis (C86.0)")

Back-references to C86

• Type 1 Excludes: C76 Malignant neoplasm of other and ill-defined sites ("malignant neoplasm of lymphoid, hematopoietic and related tissue (C81-C96)")
• Type 1 Excludes: C77 Secondary and unspecified malignant neoplasm of lymph nodes ("malignant neoplasm of lymph nodes, specified as primary (C81-C86, C88, C96.-)")
• Type 1 Excludes: C85 Other specified and unspecified types of non-Hodgkin lymphoma ("other specified types of T/NK-cell lymphoma (C86.-)")
• Code First: Z15.0 Genetic susceptibility to malignant neoplasm (", if applicable, any current malignant neoplasm (C00-C75, C81-C96)")

Nearby codes

• 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 (this code)
• 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