Z00.110 Health examination for newborn under 8 days old

Billable ICD-10-CM code, FY2026. Exempt from present-on-admission (POA) reporting.

Applicable to

• Health check for newborn under 8 days old

Applies from Z00 Encounter for general examination without complaint, suspected or reported diagnosis

Excludes1 (never code together)

• encounter for examination for administrative purposes (Z02.-)

Excludes2 (not included here)

• encounter for pre-procedural examinations (Z01.81-)
• special screening examinations (Z11-Z13)

Applies from Z00.11 Newborn health examination

Applicable to

• Health check for child under 29 days old

Excludes1 (never code together)

• health check for child over 28 days old (Z00.12-)

Use additional code

• code to identify any abnormal findings

MS-DRG index

Defines the logic of DRG(s) 795 in MDC 15.

Approximate ICD-9-CM (GEMs)

• V20.31 Health supervision for newborn under 8 days old

Medicare Code Edits (MCE v43.1 (April 2026))

• Perinatal/Newborn diagnoses: Age conflict edit. These diagnoses occur only during the perinatal or newborn period, so the Medicare Code Editor flags them on any record where the patient is not age 0.
• Unacceptable principal diagnosis: These codes describe a circumstance which influences care but is not a current illness or injury, or capture only an underlying condition, and are unacceptable as principal diagnosis.

Code annotations containing back-references to Z00.110

Back-references to Z00.11

• Type 1 Excludes: Z00.12 Encounter for routine child health examination ("health check for child under 29 days old (Z00.11-)")
• Type 1 Excludes: Z00.12 Encounter for routine child health examination ("newborn health examination (Z00.11-)")

Back-references to Z00

• Type 1 Excludes: Z02.7 Encounter for issue of medical certificate ("encounter for general medical examination (Z00-Z01, Z02.0-Z02.6, Z02.8-Z02.9)")

Diagnosis Index entries for Z00.110

• Newborn (infant) (liveborn) (singleton) › examination › under 8 days old

Nearby codes

• Z00.0 Encounter for general adult medical examination
• Z00.00 Encounter for general adult medical examination without abnormal findings
• Z00.01 Encounter for general adult medical examination with abnormal findings
• Z00.1 Encounter for newborn, infant and child health examinations
• Z00.11 Newborn health examination
• Z00.110 Health examination for newborn under 8 days old (this code)
• Z00.111 Health examination for newborn 8 to 28 days old
• Z00.12 Encounter for routine child health examination
• Z00.121 Encounter for routine child health examination with abnormal findings
• Z00.129 Encounter for routine child health examination without abnormal findings
• Z00.2 Encounter for examination for period of rapid growth in childhood