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    v1.0.28
    OpenPayerBilling CodesPersons encountering health services for examinationsICD-10-CM z12-encounter-for-screening-malignant-neoplasms
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    ICD-10-CM Code For Encounter For Screening For Malignant Neoplasms: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group Z12 includes diagnoses for encounters where individuals without signs or symptoms undergo screening for malignant neoplasms of specific organs, such as the breast, cervix, colon, or prostate. These ICD-10-CM diagnosis codes are used to document preventive screening visits, capture the screening target organ, and indicate that the encounter is for surveillance rather than treatment of an active malignancy. Accurate coding within the ICD-10-CM Z12 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM Z12: Encounter For Screening For Malignant Neoplasms Overview

    This group represents encounters for screening examinations aimed at detecting malignant neoplasms in asymptomatic individuals. The codes target cancer screening activities for specific organ systems such as breast, cervix, colon, and others. Accurate coding ensures services are captured for quality reporting and supports appropriate reimbursement for preventive care.

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    When to Use

    Use a code from this group when an asymptomatic patient presents solely for cancer screening of a specified organ or site. Do not use these codes to document diagnostic evaluation of signs, symptoms, or known malignancy.

    ICD-10-CM Codes

    20 rows

    ICD-10-CM CodeDescription
    Z12.0Encounter for screening for malignant neoplasm of stomach
    Z12.10Encounter for screening for malignant neoplasm of intestinal tract, unspecified
    Z12.11Encounter for screening for malignant neoplasm of colon
    Z12.12Encounter for screening for malignant neoplasm of rectum
    Z12.13Encounter for screening for malignant neoplasm of small intestine
    Z12.2Encounter for screening for malignant neoplasm of respiratory organs
    Z12.31Encounter for screening mammogram for malignant neoplasm of breast
    Z12.39Encounter for other screening for malignant neoplasm of breast
    Z12.4Encounter for screening for malignant neoplasm of cervix
    Z12.5Encounter for screening for malignant neoplasm of prostate
    Z12.6Encounter for screening for malignant neoplasm of bladder
    Z12.71Encounter for screening for malignant neoplasm of testis
    Z12.72Encounter for screening for malignant neoplasm of vagina
    Z12.73Encounter for screening for malignant neoplasm of ovary
    Z12.79Encounter for screening for malignant neoplasm of other genitourinary organs
    Z12.81Encounter for screening for malignant neoplasm of oral cavity
    Z12.82Encounter for screening for malignant neoplasm of nervous system
    Z12.83Encounter for screening for malignant neoplasm of skin
    Z12.89Encounter for screening for malignant neoplasm of other sites
    Z12.9Encounter for screening for malignant neoplasm, site unspecified

    DRG Codes

    1 rows

    DRG CodeDescription
    951Other Factors Influencing Health Status

    Typical Clinical Scenarios

    • A 55-year-old asymptomatic woman presents to her primary care clinic for routine preventive care and requests a Pap smear and HPV co-testing as part of cervical cancer screening. The clinician documents that this visit is solely for screening with no signs or symptoms of cervical disease; a screening code is assigned to indicate the encounter is for malignant neoplasm screening. Typical codes: Z12.4
    • A 64-year-old man with no urological complaints attends a community health screening and undergoes a prostate-specific antigen (PSA) test because of age-based screening recommendations; there are no abnormal findings at the time of the visit. The encounter is coded to reflect that the service provided was screening for a malignant neoplasm rather than evaluation of symptoms. Typical codes: Z12.5
    • A 45-year-old woman with a prior history of colorectal polyps but currently asymptomatic presents for a scheduled colonoscopy for surveillance and cancer screening; the procedure is preventive in intent and not prompted by new symptoms. The visit is coded as an encounter for screening for malignant neoplasm of the colon to capture the preventive nature of the service. Typical codes: Z12.11, Z12.12

    Related Codes

    Z00-ENCOUNTER-FOR-GENERAL-EXAMINATION

    ICD-10-CM Code For Encounter For General Examination Without Complaint Suspected Or Reported Diagnosis: Group Overview

    Z01-ENCOUNTER-FOR-OTHER-SPECIAL-EXAMINATION

    ICD-10-CM Code For Encounter For Other Special Examination Without Complaint, Suspected Or Reported Diagnosis: Group Overview

    Z02-ENCOUNTER-FOR-ADMINISTRATIVE-EXAMINATION

    ICD-10-CM Code For Encounter For Administrative Examination: Group Overview

    Z03-ENCOUNTER-FOR-MEDICAL-OBSERVATION

    ICD-10-CM Code For Encounter For Medical Observation For Suspected Diseases And Conditions Ruled Out: Group Overview

    Z04-ENCOUNTER-FOR-EXAMINATION-AND-OBSERVATION

    ICD-10-CM Code For Encounter For Examination And Observation For Other Reasons: Group Overview

    Z05-ENCOUNTER-FOR-NEWBORN-OBSERVATION

    ICD-10-CM Code For Encounter For Observation And Evaluation Of Newborn For Suspected Diseases And Conditions Ruled Out: Group Overview

    Z08-ENCOUNTER-FOR-FOLLOW-UP-MALIGNANT-NEOPLASM

    ICD-10-CM Code For Encounter For Follow-Up Examination After Completed Treatment For Malignant Neoplasm: Group Overview

    Z09-ENCOUNTER-FOR-FOLLOW-UP

    ICD-10-CM Code For Encounter For Follow-Up Examination After Completed Treatment For Conditions Other Than Malignant Neoplasm: Group Overview

    Z11-ENCOUNTER-FOR-SCREENING

    ICD-10-CM Code For Encounter For Screening For Infectious And Parasitic Diseases: Group Overview

    Z13-ENCOUNTER-FOR-SCREENING

    ICD-10-CM Code For Encounter For Screening For Other Diseases And Disorders: Group Overview

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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