Infectious organism, unknown

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ICD10 Diagnosis
Dx: Infectious organism, unknown
ICD10 code: U22.9
Pre-ICD10 counterpart: Negative Culture, No Culture Sent or Resulted, Unknown Pathogen
Charlson/ALERT Scale: none
APACHE Como Component: none
APACHE Acute Component: none
External ICD10 Documentation
This diagnosis is a part of ICD10 collection.

Additional Info

This is not a standard ICD10 code but a ICD10 Custom code. We added it for the following reason:
We needed to some track pathogens that do not have a specific ICD10 code.

See Non-standard ICD10 Diagnoses for other codes like this.

When a code in category:potential infection is not an infection, code Not an Infection (ICD10 pathogen alternative) with it instead of this code to satisfy cross-checks.

  • This is the "pathogen code" to use when there is a presumed infection and the organism is unknown.
  • This occurs for either of the following possible reasons:
    • No cultures were sent or resulted
    • Cultures were sent but they were negative (negative cultures) or the lab reports "normal flora" or "mixed normal flora"
  • When the pathogen was isolated and therefore is known, but it is not in our list of specific pathogens, then use one or another of the following:
    • Bacteria, NOS
    • Virus, NOS
    • Fungus or yeast, NOS

Alternate ICD10s to consider coding instead or in addition

Virus codes:
Non-specific pathogens codes:
Pathogens codes:

Candidate Combined ICD10 codes

Related CCI Codes

Data Integrity Checks (SMW)

Check Inf Antibiotic resistance must have pathogen or Infection with implied pathogenCCMDB.mdbimplemented
Query check ICD10 Inf Infection req Pathogen must have oneCCMDB.mdbimplemented
Check Inf Pathogens must have Infection requiring pathogen or Potential InfectionCCMDB.mdbimplemented
Check Inf Infection with implied pathogen must not have a pathogen combined codeCCMDB.mdbimplemented
Check Inf Potential Infection must have pathogen or alt combined codeCCMDB.mdbneeds review
Check ICD10 some cant be primaryCCMDB.mdbneeds review
Query check ICD10 duplicatesCCMDB.mdbneeds review

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