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D89.40 – Mast cell activation, unspecified

Mast cell activation, unspecified

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D89.40 – Mast cell activation, unspecified
Andrew Saurin

Medicare CPT / Coverage Preview

Medicare CPT / Coverage Preview
ICD-10: D89.40
Raw ICD: D8940
Context: D89.40 – Mast cell activation, unspecified
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Title

D89.40 – Mast cell activation, unspecified

Description

Mast cell activation, unspecified

Category

Diseases of the Blood and Blood-forming Organs and Certain Disorders Involving the Immune Mechanism

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D89.40 – Mast cell activation, unspecified

ICD-10-CM Code

D89.40

Raw ICD Code

D8940

Code Range

D50-D89

Billable / Valid

Valid/Billable

CDC Order Number

03866

Source Year

FY2026

Effective Date

October 1, 2025

Import Batch

icd10cm-fy2026-batch02-of30