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ICD-10-CM 2027 diagnosis code

Z12Encounter for screening for malignant neoplasms

Not billable — use a more specific code

Z12 is a header code, so it can't be reported by itself. Choose one of the 10 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About Z12

Z12 is the ICD-10-CM diagnosis code for encounter for screening for malignant neoplasms. It belongs to block Z00-Z13 (persons encountering health services for examinations) and chapter 21 (factors influencing health status and contact with health services). It is a header code, so it can't be reported by itself; one of its 10 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: Z12.0 (stomach), Z12.1 (tract), Z12.2 (organs), Z12.3 (breast), Z12.4 (cervix), Z12.5 (prostate), Z12.6 (bladder), Z12.7 (organs) and 2 more.

Don't report Z12 together with the conditions in its Excludes1 note: encounter for diagnostic examination-code to sign or symptom.

Use an additional code to identify any family history of malignant neoplasm (Z80.-).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under Z12

Coding notes

Applicable toConditions and synonyms classified to this code
  • Screening is the testing for disease or disease precursors in asymptomatic individuals so that early detection and treatment can be provided for those who test positive for the disease.
Excludes1Not coded here — never report together with this code
  • encounter for diagnostic examination-code to sign or symptom
Use additional codeAdd a secondary code to fully describe the condition
  • code to identify any family history of malignant neoplasm (Z80.-)

Notes that apply from higher levels

Instructions written at a parent level also apply to Z12.

Broader instructions also apply from Z00-Z13 Persons encountering health services for examinations and Chapter 21: Factors influencing health status and contact with health services.

Codes whose notes reference Z12

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about Z12

Is Z12 billable?

No. Z12 is a header code. Report one of its more specific subcodes instead.