2027 ICD-10-CM Diagnosis Code Z12Encounter for screening for malignant neoplasms

ICD-10-CM Codes›Z00–Z99›Z00-Z13›Z12

ICD-10-CM Z12
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

Z12 is a non-billable ICD-10-CM category code for encounter for screening for malignant neoplasms, so it cannot be submitted on claims. Use a more specific code from this category instead, such as Z12.0, Z12.10, Z12.11, and Z12.12.

Code Identity

ICD-10-CM Code
Z12
Billable Status
No — Non-Billable Category
Code Describes
Encounter for screening for malignant neoplasms
Short Description
Encounter for screening for malignant neoplasms
Same as the full description in the CMS dataset.
Chapter
Z00-Z13
Persons encountering health services for examinations

Code Classification

ChapterZ00–Z99Factors influencing health status and contact with health services
SectionZ00-Z13Persons encountering health services for examinations
CategoryZ12Encounter for screening for malignant neoplasms
This CodeZ12Encounter for screening for malignant neoplasms

Specific Coding for Encounter for screening for malignant neoplasmsOverview

Non-specific codes like Z12 require more characters. Use one of these billable codes instead:

  • Use Z12.0 for Encounter for screening for malignant neoplasm of stomach

  • Z12.1 for Encounter for screening for malignant neoplasm of intestinal tract

  • Use Z12.10 for Encounter for screening for malignant neoplasm of intestinal tract, unspecified

  • Use Z12.11 for Encounter for screening for malignant neoplasm of colon

  • Use Z12.12 for Encounter for screening for malignant neoplasm of rectum

  • Use Z12.13 for Encounter for screening for malignant neoplasm of small intestine

  • Use Z12.2 for Encounter for screening for malignant neoplasm of respiratory organs

  • Z12.3 for Encounter for screening for malignant neoplasm of breast

  • Use Z12.31 for Encounter for screening mammogram for malignant neoplasm of breast

  • Use Z12.39 for Encounter for other screening for malignant neoplasm of breast

  • Use Z12.4 for Encounter for screening for malignant neoplasm of cervix

  • Use Z12.5 for Encounter for screening for malignant neoplasm of prostate

  • Use Z12.6 for Encounter for screening for malignant neoplasm of bladder

  • Z12.7 for Encounter for screening for malignant neoplasm of other genitourinary organs

  • Use Z12.71 for Encounter for screening for malignant neoplasm of testis

  • Use Z12.72 for Encounter for screening for malignant neoplasm of vagina

  • Use Z12.73 for Encounter for screening for malignant neoplasm of ovary

  • Use Z12.79 for Encounter for screening for malignant neoplasm of other genitourinary organs

  • Z12.8 for Encounter for screening for malignant neoplasm of other sites

  • Use Z12.81 for Encounter for screening for malignant neoplasm of oral cavity

  • Use Z12.82 for Encounter for screening for malignant neoplasm of nervous system

  • Use Z12.83 for Encounter for screening for malignant neoplasm of skin

  • Use Z12.89 for Encounter for screening for malignant neoplasm of other sites

  • Use Z12.9 for Encounter for screening for malignant neoplasm, site unspecified

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to Z12: its own notes plus those printed at block Z00-Z13 and Chapter 21. A note printed at a category, block or chapter applies to every code under it.

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • 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.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

  • encounter for diagnostic examination-code to sign or symptom

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Block Z00-Z13 Persons encountering health services for examinations applies to 156 codes
  • examinations related to pregnancy and reproduction (Z30-Z36, Z39.-)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

  • code to identify any family history of malignant neoplasm (Z80.-)

Notes

General instructions on how these codes are used.

From Block Z00-Z13 Persons encountering health services for examinations applies to 156 codes
  • Nonspecific abnormal findings disclosed at the time of these examinations are classified to categories R70-R94.
From Chapter 21 (Z00-Z99) Factors influencing health status and contact with health services applies to 1,425 codes
  • Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
  • (a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
  • (b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name Z12, its category, or a range that includes it.

Excludes2 3

These codes carry an Excludes2 note naming Z12: its condition is not part of those codes, and both may be reported when the patient has both.

  • Z13.8 Encounter for screening for other specified diseases and disorders
    screening for malignant neoplasms (Z12.-)
  • Z00 Encounter for general examination without complaint, suspected or reported diagnosis
    special screening examinations (Z11-Z13) names Z11-Z13, which includes this code
  • Z01 Encounter for other special examination without complaint, suspected or reported diagnosis
    screening examinations (Z11-Z13) names Z11-Z13, which includes this code

Patient EducationClinical

Health Screening

Screenings are tests that look for diseases before you have symptoms. Screening tests can find diseases early, when they're easier to treat. You can get some screenings in your doctor's office. Others need special equipment, so you may need to go to a different office or clinic.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About Z12Overview

What is the ICD-10 code for encounter for screening for malignant neoplasms?

Z12 is the ICD-10-CM category for encounter for screening for malignant neoplasms, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is Z12 (Encounter for screening for malignant neoplasms) a billable code?

No. This is a category header that groups the codes for encounter for screening for malignant neoplasms, and headers cannot be submitted on claims. Claims for encounter for screening for malignant neoplasms need a more specific code from this category, such as Z12.0, Z12.10, and Z12.11.

Does Z12 need an additional code?

When the condition applies, yes. The Use Additional Code note reads: code to identify any family history of malignant neoplasm (Z80.-). The additional code is reported after Z12.