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This page is about the pre-ICD10 diagnosis coding schema. See the ICD10 Diagnosis List, or the following for similar diagnoses in ICD10:Bacteremia

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Category:Infection (old)


Category: Medical Problem (old)

Main Diagnosis: Septicemia (Bacteremia/Fungemia)
Sub Diagnosis: UPL (Universal Pathogen List)
Diagnosis Code: 4600 - Septicemia (Bacteremia/Fungemia)
Comorbid Diagnosis: No
Charlson Comorbid coding (pre ICD10): 0
Program: Critical Care and Medicine
Status: Currently Collected


Septicemia/BACTEREMIA/Fungemia , (blood stream infection)-(BSI) means POSITIVE blood culture, (presence of pathogens in blood stream).


  • Positive (+ ve) blood cultures
  • Unknown Pathogen only used for septicemia if the patient was transferred from a hospital where positive blood cultures were found but it is unclear which organism it was because it was not included in the documentation sent with the patient.

Physician Recording Septicemia without +ve blood culture

  • If this happens it is best to ask the physician about this. Usually they mean septic not septicemia because they are still unsure of the source.
  • If a source is not identified by cultures then use Fever NYD

Alternate dx