AutoICD API

C91.5

Non-billable

Adult T-cell lymphoma/leukemia (HTLV-1-associated)

Adult T-cell lymphoma/leukemia (HTLV-1-associated)

This is a header/category code. For billing purposes, use a more specific child code from the list below.

Status

Non-billable / Header

Block

C81-C96

Parent Code

C91

Child Codes

3

Coding Notes

Inclusion Terms

Alternative clinical terms for this condition

  • Acute variant of adult T-cell lymphoma/leukemia (HTLV-1-associated)
  • Chronic variant of adult T-cell lymphoma/leukemia (HTLV-1-associated)
  • Lymphomatoid variant of adult T-cell lymphoma/leukemia (HTLV-1-associated)
  • Smouldering variant of adult T-cell lymphoma/leukemia (HTLV-1-associated)

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

  • personal history of leukemia (Z85.6)

Excludes 2

Conditions not included here, but the patient may have both

  • 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)

Child Codes (3)

C91.50

Adult T-cell lymph/leuk (HTLV-1-assoc) not achieve remission

BillableC91.51

Adult T-cell lymphoma/leukemia (HTLV-1-assoc), in remission

BillableC91.52

Adult T-cell lymphoma/leukemia (HTLV-1-assoc), in relapse

Billable

Also Known As / Clinical Terms

UMLS

Frequently Asked Questions

What is ICD-10 code C91.5?

ICD-10-CM code C91.5 represents "Adult T-cell lymphoma/leukemia (HTLV-1-associated)". It is a non-billable header code — use a more specific child code for billing purposes.

Is C91.5 a billable code?

No, C91.5 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 3 child codes under C91.5.

What chapter is C91.5 in?

C91.5 is in Chapter 2: Neoplasms (codes C00-D49).

What codes cannot be used with C91.5?

C91.5 has Excludes1 notes indicating codes that cannot be used together with it, including: personal history of leukemia (Z85.6).

What are the subcategories under C91.5?

C91.5 has 3 child codes, including: C91.50 (Adult T-cell lymph/leuk (HTLV-1-assoc) not achieve remission), C91.51 (Adult T-cell lymphoma/leukemia (HTLV-1-assoc), in remission), C91.52 (Adult T-cell lymphoma/leukemia (HTLV-1-assoc), in relapse).

What are the UMLS CUIs for C91.5?

C91.5 is linked to 5 UMLS Concept Unique Identifiers: C0023493, C2854101, C2854102, C2854103, C2854104. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.