All ICD10 Codes

C91.40

Billable
ChapterC00–D49
Ranksubcategory
Official Description

Hairy cell leukemia not having achieved remission

Metadata & Insights
  • •Billable/specific code (valid for reimbursement).
  • •Chapter 2: Neoplasms (C00-D49).

Instructional Notes

Includes
  • Hairy cell leukemia with failed remission
  • Hairy cell leukemia NOS
General instructions are available for the parent sections:
View C81-C96 NotesView C91 NotesView C91.4 Notes

Clinical Hierarchy

BillableHas subcodes
CH2Neoplasms (C00-D49)
C81-C96Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96)
C91Lymphoid leukemia
C91.4Hairy cell leukemia
C91.40Hairy cell leukemia not having achieved remissionBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to C91.40:

subcategoryC91.4
Hairy cell leukemia
View context instructions
categoryC91
Lymphoid leukemia
View context instructions
blockC81-C96
Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

Find Procedures (ICD-10-PCS)

Find surgical and procedural codes related to Hairy cell leukemia not having achieved remission.

Search PCS Codes