2025
ICD-10-CM
Diagnosis
Code

R79.1 Abnormal coagulation profile

  • Billable
  • 2016–2025

R79.1 is a billable/specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Abnormal coagulation profile.

Inclusion term

  • Abnormal or prolonged bleeding time

  • Abnormal or prolonged coagulation time

  • Abnormal or prolonged partial thromboplastin time [PTT]

  • Abnormal or prolonged prothrombin time [PT]

  • Low von Willebrand factor

Type 1 excludes

  • Coagulation defects (D68.-)

Type 2 excludes

  • Abnormality of fluid, electrolyte or acid-base balance (E86-E87)

Versions

  1. 2025

    No changes

  2. 2024

    No changes

  3. 2023

    Code changed

    • Inclusion term

        • Abnormal or prolonged bleeding time
        • Abnormal or prolonged coagulation time
        • Abnormal or prolonged partial thromboplastin time [PTT]
        • Abnormal or prolonged prothrombin time [PT]
        • Abnormal or prolonged bleeding time
        • Abnormal or prolonged coagulation time
        • Abnormal or prolonged partial thromboplastin time [PTT]
        • Abnormal or prolonged prothrombin time [PT]
        • Low von Willebrand factor

  4. 2022

    No changes

  5. 2021

    No changes

  6. 2020

    No changes

  7. 2019

    No changes

  8. 2018

    Code changed

    • Type 2 excludes

        • abnormality of fluid, electrolyte or acid-base balance (E86-E87)

  9. 2017

    No changes

  10. 2016

    New code