AutoICD API

C91.1

Non-billable

Chronic lymphocytic leukemia of B-cell type

Chronic lymphocytic leukemia of B-cell type

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

  • Lymphoplasmacytic leukemia
  • Richter syndrome

Excludes 1

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

  • personal history of leukemia (Z85.6)
  • lymphoplasmacytic lymphoma (C83.0-)

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)

C91.10

Chronic lymphocytic leuk of B-cell type not achieve remis

BillableC91.11

Chronic lymphocytic leukemia of B-cell type in remission

BillableC91.12

Chronic lymphocytic leukemia of B-cell type in relapse

Billable

Also Known As / Clinical Terms

UMLS

Frequently Asked Questions

What is ICD-10 code C91.1?

ICD-10-CM code C91.1 represents "Chronic lymphocytic leukemia of B-cell type". It is a non-billable header code — use a more specific child code for billing purposes.

Is C91.1 a billable code?

No, C91.1 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 C91.1.

What chapter is C91.1 in?

C91.1 is in Chapter 2: Neoplasms (codes C00-D49).

What codes cannot be used with C91.1?

C91.1 has Excludes1 notes indicating codes that cannot be used together with it, including: personal history of leukemia (Z85.6); lymphoplasmacytic lymphoma (C83.0-).

What are the subcategories under C91.1?

C91.1 has 3 child codes, including: C91.10 (Chronic lymphocytic leuk of B-cell type not achieve remis), C91.11 (Chronic lymphocytic leukemia of B-cell type in remission), C91.12 (Chronic lymphocytic leukemia of B-cell type in relapse).

What are the UMLS CUIs for C91.1?

C91.1 is linked to 3 UMLS Concept Unique Identifiers: C0023434, C2854089, C0349631. 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.