U.S. ICD-10-CM · FY 2027

Z90 ICD-10-CM Code: Acquired absence of organs, not elsewhere classified

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

Code definition

Official description

Z90

Acquired absence of organs, not elsewhere classified

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

Classification

Where Z90 sits

  1. 1

    Chapter 21

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

  2. 2

    Section

    Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99)

  3. 3

    Category Z90

    Acquired absence of organs, not elsewhere classified

  4. 4

    Code Z90

    Acquired absence of organs, not elsewhere classified

More specific choices

Codes under Z90

Z90 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Z90.0

Acquired absence of part of head and neck

Z90.1

Acquired absence of breast and nipple

Z90.2

Acquired absence of lung [part of]

Z90.3

Acquired absence of stomach [part of]

Z90.4

Acquired absence of other specified parts of digestive tract

Z90.5

Acquired absence of kidney

Z90.6

Acquired absence of other parts of urinary tract

Z90.7

Acquired absence of genital organ(s)

Z90.8

Acquired absence of other organs

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for Z90.

Code first

No “code first” instruction is listed for Z90.

Use additional code

No “use additional code” instruction is listed for Z90.

Excludes1

Conditions that should not be reported together with this code.

  • congenital absence - see Alphabetical Index

Excludes2

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

  • postprocedural absence of endocrine glands (E89.-)

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

Publisher

Vero Scribe Inc.

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 Z90 mean?

Z90 is the FY 2027 U.S. ICD-10-CM code for “Acquired absence of organs, not elsewhere classified.”

Is Z90 a billable or specific ICD-10-CM code?

No. Z90 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 Z90 located in ICD-10-CM?

Z90 is listed in Chapter 21, Factors influencing health status and contact with health services (Z00-Z99), within Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99) (Z77–Z99), under category Z90, Acquired absence of organs, not elsewhere classified.

What coding notes are listed for Z90?

No inclusion terms are listed for Z90 in this reference record. No code-first instruction is listed. Excludes1 notes: congenital absence - see Alphabetical Index. Excludes2 notes: postprocedural absence of endocrine glands (E89.-).

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