Z05
ICD-10Non-billable categoryEnctr for Obs & eval of NB for susp diseases and cond R/O
Official ICD-10-CM descriptor (FY2026)
Encounter for observation and evaluation of newborn for suspected diseases and conditions ruled out
Z05 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Inclusion terms
- This category is to be used for newborns, within the neonatal period (the first 28 days of life), who are suspected of having an abnormal condition, but without signs or symptoms, and which, after examination and observation, is ruled out.
More specific codes under Z05
- Z05.0Obs & eval of NB for suspected cardiac condition ruled out
- Z05.1Obs & eval of NB for suspected infect condition ruled out
- Z05.2Obs & eval of NB for suspected neuro condition ruled out
- Z05.3Obs & eval of NB for suspected resp condition ruled out
- Z05.4Obs & eval of NB for suspected genetic, metab,immun cond R/Ocategory
- Z05.5Obs & eval of NB for suspected GI condition ruled out
- Z05.6Obs & eval of NB for suspected GU condition ruled out
- Z05.7Obs & eval NB for susp skin, subcu, ms & conn tiss cond R/Ocategory
- Z05.8Obs & eval of NB for oth suspected condition ruled outcategory
- Z05.9Obs & eval of NB for unsp suspected condition ruled out
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.