2025
ICD-10-CM
Diagnosis
Code

D47.0 Mast cell neoplasms of uncertain behavior

  • Non-billable
  • 2016–2025

D47.0 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Mast cell neoplasms of uncertain behavior.

Type 1 excludes

  • Congenital cutaneous mastocytosis (Q82.2)

  • Histiocytic neoplasms of uncertain behavior (D47.Z9)

  • Malignant mast cell neoplasm (C96.2-)

Codes

Versions

  1. 2025

    No changes

  2. 2024

    No changes

  3. 2023

    No changes

  4. 2022

    No changes

  5. 2021

    No changes

  6. 2020

    No changes

  7. 2019

    Code changed

    • Type 1 excludes

        • congenital cutaneous mastocytosis (Q82.2-)
        • histiocytic neoplasms of uncertain behavior (D47.Z9)
        • malignant mast cell neoplasm (C96.2-)
        • congenital cutaneous mastocytosis (Q82.2)
        • histiocytic neoplasms of uncertain behavior (D47.Z9)
        • malignant mast cell neoplasm (C96.2-)

  8. 2018

    Code changed

    • Type 1 excludes

        • malignant mast cell tumor (C96.2)
        • mastocytosis (congenital) (cutaneous) (Q82.2)
        • congenital cutaneous mastocytosis (Q82.2-)
        • histiocytic neoplasms of uncertain behavior (D47.Z9)
        • malignant mast cell neoplasm (C96.2-)

    • Description

        • Histiocytic and mast cell tumors of uncertain behavior
        • Mast cell neoplasms of uncertain behavior

    • Inclusion term

        • Indolent systemic mastocytosis
        • Mast cell tumor NOS
        • Mastocytoma NOS

    • Short description

        • Histiocytic and mast cell tumors of uncertain behavior
        • Mast cell neoplasms of uncertain behavior

  9. 2017

    No changes

  10. 2016

    New code