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  1. HUMAN IMMUNODEFICIENCY VIRUS (HIV) INFECTIONS
    1. Code only confirmed cases of HIV infection/illness.
    2. This is an exception to guideline 1.8 which states "If the diagnosis documented at the time of discharge is qualified as 'probable,' 'suspected,' 'likely,' 'questionable,' 'possible,' or 'still to be ruled out,' code the condition as if it existed or was established..."

      In this context, "confirmation" does not require documentation of positive serology or culture for HIV; the physician's diagnostic statement that the patient is HIV positive, or has an HIV-related illness is sufficient.

    3. Selection of HIV code
      1. 042 Human Immunodeficiency Virus [HIV] Disease
      2. Patients with an HIV-related illness should be coded to 042,

        Human Immunodeficiency Virus [HIV] Disease.

      3. V08 Asymptomatic Human Immunodeficiency Virus [HIV] Infection
      4. Patients with physician-documented asymptomatic HIV infections who have never had an HIV-related illness should be coded to V08, Asymptomatic Human Immunodeficiency Virus [HIV] Infection.

      5. 795.71 Nonspecific Serologic Evidence of Human Immunodeficiency Virus [HIV]

      Code 795.71, Nonspecific serologic evidence of human immunodeficiency virus [HIV], should be used for patients (including infants) with inconclusive HIV test results.

    4. Previously diagnosed HIV-related illness
    5. Patients with any known prior diagnosis of an HIV-related illness should be coded to 042. Once a patient had developed an HIV-related illness, the patient should always be assigned code 042 on every subsequent admission. Patients previously diagnosed with any HIV illness (042) should never be assigned to 795.71 or V08.

    6. Sequencing
    7. The sequencing of diagnoses for patients with HIV-related illnesses follows guideline 2 for selection of principal diagnosis. That is, the circumstances of admission govern the selection of principal diagnosis, "that condition established after study to be chiefly responsible for occasioning the admission of the patient to the hospital for care."

      Patients who are admitted for an HIV-related illness should be assigned a minimum of two codes: first assign code 042 to identify the HIV disease and then sequence additional codes to identify the other diagnoses. If a patient is admitted for an HIV-related condition, the principal diagnosis should be 042, followed by additional diagnosis codes for all reported HIV-related conditions.

      If a patient with HIV disease is admitted for an unrelated condition (such as a traumatic injury), the code for the unrelated condition (e.g., the nature of injury code) should be the principal diagnosis. Other diagnoses would be 042 followed by additional diagnosis codes for all reported HIV-related conditions.

      Whether the patient is newly diagnosed or has had previous admissions for HIV conditions (or has expired) is irrelevant to the sequencing decision.

    8. HIV Infection in Pregnancy, Childbirth and the Puerperium
    9. During pregnancy, childbirth or the puerperium, a patient admitted because of an HIV-related illness should receive a principal diagnosis of 647.6X, Other specified infectious and parasitic diseases in the mother classifiable elsewhere, but complicating the pregnancy, childbirth or the puerperium, followed by 042 and the code(s) for the HIV-related illness(es). This is an exception to the sequencing rule found in 10.4 above. Patients with asymptomatic HIV infection status admitted during pregnancy, childbirth, or the puerperium should receive codes of 647.6X and V08.

    10. Asymptomatic HIV Infection
    11. V08 Asymptomatic human immunodeficiency virus [HIV] infection, is to be applied when the patient without any documentation of symptoms is listed as being "HIV positive," "known HIV," "HIV test positive," or similar terminology. Do not use this code if the term "AIDS" is used or if the patient is treated for any HIV-related illness or is described as having any condition(s) resulting from his/her HIV positive status; use 042 in these cases.

    12. Inconclusive Laboratory Test for HIV
    13. Patients with inconclusive HIV serology, but no definitive diagnosis or manifestations of the illness may be assigned code 795.71.Inconclusive serologic test for Human Immunodeficiency Virus [HIV]

    14. Testing for HIV

If the patient is asymptomatic but wishes to know his/her HIV status, use code V73.89, Screening for other specified viral disease. Use code V69.8, Other problems related to lifestyle, as a secondary code if an asymptomatic patient is in a known high-risk group for HIV. Should a patient with signs or symptoms or illness, or a confirmed HIV related diagnosis be tested for HIV code the signs and symptoms or the diagnosis. An additional counseling code V65.44 may be used if counseling is provided during the encounter for the test.

When the patient returns to be informed of his/her HIV test results use code V65.44, HIV counseling, if the results of the test are negative. If the results are positive but the patient is asymptomatic use code V08, Asymptomatic HIV infection. If the results are positive and the patient is symptomatic use code 042, HIV infection, with codes for the HIV related symptoms or diagnosis. The HIV counseling code may also be used if counseling is provided for patients with positive test results.

 
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ICD-10 codes, terms, and text World Health Organization, 1992-94