"" Thrombocytosis ICD-10-CM Diagnosis Code D75.839 - Health and Fitness Informatics


Thrombocytosis ICD-10-CM Diagnosis Code D75.839

Thrombocytosis ICD-10-CM Diagnosis Code D75.839:

  • ICD-10 code for thrombocytosis D75.839 should not be used for compensation purposes because there are numerous codes below it that include a vast level of detail.
  • ICD-10-CM code D75.839 for thrombocytosis, indefinite is a medical classification as listed by World Health Organization (WHO) below the range. Illnesses of the blood, and blood-forming organs, and certain disorders engage the immune system.   
  • According to the 2023 edition of ICD-10 D75.839 turned effective on October 1, 2022.
  • ICD-10-CM D75.839 is the American version while other worldwide versions may vary.

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Thrombocytosis, unspecified

Thromocytosis NOS

Thrombocythemia NOS


Exclude 2Essential thrombocythemia (D47.3)


  • chronic lymphadenitis (I88.1)
  • acute lymphadenitis (L04.-)
  • mesenteric lymphadenitis (acute) (chronic) (I88.0)
  • hypergammaglobulinemia NOS (D89.2)
  • enlarged lymph nodes (R59.-)
  • lymphadenitis NOS (I88.9)


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The following code(s) over D75.83 contain annotation back-references that can be valid to D75.83


Diseases of the blood, blood-forming organs, and some disorders engaging the immune system


Other and undetermined diseases of the blood and blood-making organs

Code History of Thrombocytosis ICD-10

        2022 (effective 10/1/2021): New code

        2023 (effective 10/1/2022): No change

Compensation claims with a date of examination on or after 1st October 2015 need the use of ICD-10-CM codes.

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Approximate Synonyms:

  • Secondary thrombocytosis
  • Reactive thrombocytosis
  • Thrombocythemia, NOS
  • Chronic thrombocytosis

Clinical Information:

  • Thrombocythemia and thrombocytosis are characterized by an elevated number of platelets than normal. 
  • A disorder is caused when other conditions and diseases result in high platelet numbers. It is also known as reactive or secondary thrombocytosis.
  • Thrombocythemia is a disorder that occurs when the reason for the high platelet count is unidentified. This condition is sometimes called essential or primary thrombocythemia.
  • Either thrombocythemia or thrombocytosis is not reportable by themselves. If they are submitted as primary/essential thrombocythemia or primary/essential thrombocytosis then this can be reported. 

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Q. What does thrombocytosis mean?

A. Thrombocytosis is a condition in which elevated numbers of platelets produces by the body. It’s also called secondary or reactive thrombocytosis.

Q. What is the ICD-10 code for a History of thrombocytosis?

A. The ICD code for thrombocytosis is D75.838, as the edition of ICD-10-CM 75 is now efficient on 1st, October  2022. 

Q. What is the main cause of thrombocytosis?

A. Megakaryocyte proliferation is the main reason for increased platelet numbers in iron deficiency anemia. Thrombocytosis is forced by interleukin-6, other cytokines, thrombopoietin, or catecholamines in infectious, inflammatory, or situations of stress, or neoplastic conditions. 

Q. What is the  ICD-10 code D47 3?

A. ICD-10 code D47.3 is indicated for Essential thrombocythemia, a medical condition listed by World Health Organization (WHO) under the range- Neoplasm. 


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