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    v1.0.28
    OpenPayerBilling CodesPersons encountering health services for examinationsICD-10-CM z13-encounter-for-screening
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    ICD-10-CM Code For Encounter For Screening For Other Diseases And Disorders: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group Z13 includes codes for encounters where individuals undergo screening examinations for a range of diseases and disorders not classified elsewhere, such as screenings for infections, metabolic conditions, or other non-routine screenings. These ICD-10-CM diagnosis codes are used to document clinical scenarios where screening intent, surveillance, or preventive assessment is the primary reason for the encounter, capturing indication rather than an established disease. Accurate coding within the ICD-10-CM Z13 group supports proper claim adjudication and complete clinical documentation.

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    ICD-10-CM Z13: Encounter For Screening For Other Diseases And Disorders Overview

    The ICD-10-CM Z13 code group represents encounters for screening for a variety of diseases and disorders not specified elsewhere, often involving preventive or surveillance examinations. These screenings target multiple organ systems or disease categories depending on the specific code selected and are used when a patient presents for assessment without a current diagnosis. Accurate coding matters for appropriate reimbursement because it documents the preventive intent and justifies the encounter for payers and quality reporting.

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    When to Use

    Use a code from this group when the primary reason for the healthcare encounter is screening for a specific disease or disorder and no definitive diagnosis is established at the time of the visit. Do not use these codes to report care for active, diagnosed conditions or for routine diagnostic workups following symptom-driven presentations.

    ICD-10-CM Codes

    30 rows

    ICD-10-CM CodeDescription
    Z13.0Encounter for screening for diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
    Z13.1Encounter for screening for diabetes mellitus
    Z13.21Encounter for screening for nutritional disorder
    Z13.220Encounter for screening for lipoid disorders
    Z13.228Encounter for screening for other metabolic disorders
    Z13.29Encounter for screening for other suspected endocrine disorder
    Z13.30Encounter for screening examination for mental health and behavioral disorders, unspecified
    Z13.31Encounter for screening for depression
    Z13.32Encounter for screening for maternal depression
    Z13.39Encounter for screening examination for other mental health and behavioral disorders
    Z13.40Encounter for screening for unspecified developmental delays
    Z13.41Encounter for autism screening
    Z13.42Encounter for screening for global developmental delays (milestones)
    Z13.49Encounter for screening for other developmental delays
    Z13.5Encounter for screening for eye and ear disorders
    Z13.6Encounter for screening for cardiovascular disorders
    Z13.71Encounter for nonprocreative screening for genetic disease carrier status
    Z13.79Encounter for other screening for genetic and chromosomal anomalies
    Z13.810Encounter for screening for upper gastrointestinal disorder
    Z13.811Encounter for screening for lower gastrointestinal disorder

    Showing 1–20 of 30

    DRG Codes

    2 rows

    DRG CodeDescription
    795Normal Newborn
    951Other Factors Influencing Health Status

    Typical Clinical Scenarios

    • A middle-aged asymptomatic patient presents to their primary care clinic for routine preventive care and requests age-appropriate screenings; the clinician documents that the visit is for screening tests such as lipid panel, fasting glucose, and colorectal cancer screening counseling without any current signs or symptoms. A screening encounter code is assigned to indicate the encounter is for preventive screening rather than treatment of an active disease. Typical codes: Z13.6, Z13.1
    • An adult with no known thyroid disease is referred by their employer for baseline occupational health screening including thyroid function tests and a neck exam after potential chemical exposure; the visit is performed solely to evaluate for possible thyroid dysfunction in the absence of symptoms. The encounter is coded to reflect screening for endocrine disorders when the purpose is surveillance or baseline assessment after exposure. Typical codes: Z13.29, Z13.31
    • A pregnant patient attends a prenatal visit and is specifically screened for gestational diabetes and other metabolic disorders as part of prenatal care, with no current diagnosis yet established. Because these tests are performed to detect disease in an asymptomatic person during pregnancy, a screening code from this group is used to document the purpose of the encounter. Typical codes: Z13.6, Z13.21

    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

    Z12-ENCOUNTER-FOR-SCREENING-MALIGNANT-NEOPLASMS

    ICD-10-CM Code For Encounter For Screening For Malignant Neoplasms: 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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