U.S. ICD-10-CM · FY 2027

Z05 ICD-10-CM Code: Encounter for observation and evaluation of newborn for suspected diseases and conditions ruled out

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

Z05

Encounter for observation and evaluation of newborn for suspected diseases and conditions ruled out

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where Z05 sits

  1. 1

    Chapter 21

    Factors influencing health status and contact with health services (Z00-Z99)

  2. 2

    Section

    Persons encountering health services for examinations (Z00-Z13)

  3. 3

    Category Z05

    Encounter for observation and evaluation of newborn for suspected diseases and conditions ruled out

  4. 4

    Code Z05

    Encounter for observation and evaluation of newborn for suspected diseases and conditions ruled out

More specific choices

Codes under Z05

Z05 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Documentation details

Notes for this code

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.

Code first

No “code first” instruction is listed for Z05.

Use additional code

No “use additional code” instruction is listed for Z05.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for Z05.

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for Z05.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code Z05 mean?

Z05 is the FY 2027 U.S. ICD-10-CM code for “Encounter for observation and evaluation of newborn for suspected diseases and conditions ruled out.”

Is Z05 a billable or specific ICD-10-CM code?

No. Z05 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is Z05 located in ICD-10-CM?

Z05 is listed in Chapter 21, Factors influencing health status and contact with health services (Z00-Z99), within Persons encountering health services for examinations (Z00-Z13) (Z00–Z13), under category Z05, Encounter for observation and evaluation of newborn for suspected diseases and conditions ruled out.

What coding notes are listed for Z05?

Its listed inclusion terms are 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.. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.

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