AutoICD API

C91.42

Billable

Hairy cell leukemia, in relapse

Hairy cell leukemia, in relapse

Status

Billable / Specific

Block

C81-C96

Parent Code

C91.4

Coding Notes

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)

Also Known As / Clinical Terms

UMLS

Frequently Asked Questions

What is the ICD-10 code for hairy cell leukemia, in relapse?

The ICD-10-CM code for hairy cell leukemia, in relapse is C91.42. The full clinical description is "Hairy cell leukemia, in relapse". C91.42 is a billable/specific code that can be used on insurance claims and medical billing.

What does ICD-10 code C91.42 mean?

ICD-10-CM code C91.42 represents "Hairy cell leukemia, in relapse". It is classified under Chapter 2: Neoplasms and is a billable/specific code that can be used on a claim.

Is C91.42 a billable code?

Yes, C91.42 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is C91.42 in?

C91.42 is in Chapter 2: Neoplasms (codes C00-D49).

What codes cannot be used with C91.42?

C91.42 has Excludes1 notes indicating codes that cannot be used together with it, including: personal history of leukemia (Z85.6).

What are the UMLS CUIs for C91.42?

C91.42 is linked to 1 UMLS Concept Unique Identifier: C0279780. 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.