ICD-10-CM diagnosis code
Z05.43 Observation and evaluation of newborn for suspected immunologic condition ruled out
- Billable
- Yes, a complete code (FY2026)
- Category
- Z05
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Other codes in Z05
15 complete codes in this category.
- Z05.0Observation and evaluation of newborn for suspected cardiac condition ruled out
- Z05.1Observation and evaluation of newborn for suspected infectious condition ruled out
- Z05.2Observation and evaluation of newborn for suspected neurological condition ruled out
- Z05.3Observation and evaluation of newborn for suspected respiratory condition ruled out
- Z05.41Observation and evaluation of newborn for suspected genetic condition ruled out
- Z05.42Observation and evaluation of newborn for suspected metabolic condition ruled out
- Z05.43Observation and evaluation of newborn for suspected immunologic condition ruled out
- Z05.5Observation and evaluation of newborn for suspected gastrointestinal condition ruled out
- Z05.6Observation and evaluation of newborn for suspected genitourinary condition ruled out
- Z05.71Observation and evaluation of newborn for suspected skin and subcutaneous tissue condition ruled out
- Z05.72Observation and evaluation of newborn for suspected musculoskeletal condition ruled out
- Z05.73Observation and evaluation of newborn for suspected connective tissue condition ruled out
Documentation tips
- Make sure the note supports every element of the title, “Observation and evaluation of newborn for suspected immunologic condition ruled out”: each detail in it should be traceable to the history, examination or assessment.
- Code to the highest specificity the documentation supports. If a detail is missing from the note, add it to the note rather than choosing a less specific code by default.
- Check the Tabular List and official guidelines for instructional notes (“code first”, “use additional code”, Excludes1/Excludes2) that apply to Z05.
ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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