Thrombocytopenia, NOS

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ICD10 Diagnosis
Dx: Thrombocytopenia, NOS
ICD10 code: D69.6
Pre-ICD10 counterpart: Thrombocytopenia
Charlson/ALERT Scale: none
APACHE Como Component: none
APACHE Acute Component: none
Start Date:
Stop Date:
External ICD10 Documentation

This diagnosis is a part of ICD10 collection.

  • SMW
    • 2019-01-01
    • 2999-12-31
    • D69.6
  • Cargo

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  • SMW
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Additional Info

  • Use this code if the thrombocytopenia is not related to the other options or the cause is unknown.
  • Regarding a "threshold" to identify low platelets:
    • The usual lower reference value (which represent the value for which 97.5% of NORMAL people are above, is 150,000. This means then that 2.5% of normal people DO have <150,000 platelets. This makes it tricky to give a single reference value below which we'll call them thrombocyotpenic.
    • Further complicating the situation, normals have relatively little fluctuations in their counts. Thus, a person whose usual count is 300,000, will actually be "relatively thrombocytopenic" if their count falls to 180,000.
  • THUS, in light of this, we will define, for our use, thrombocyotpenia as a lab finding (not necessarily as a disease or as a cause of bleeding) if either of the following is true:
    • Count <120,000
    • Fall by >100,000 from baseline


  • Post-transfusion purpura (PTP)-a rare complication of blood transfusion characterized by the precipitous onset of severe thrombocytopenia and absolute refractoriness to platelet transfusions. PTP occurs 3–12 days after blood transfusion, often in a multiparous female or previously transfused recipient. Combine with Iatrogenic, transfusion reaction (incompatibility reaction) (any type)

Alternate ICD10s to consider coding instead or in addition

Thrombocytopenia codes:

Candidate Combined ICD10 codes

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