The test almost certainly will come back negative, because there is not yet enough HIV antigen or HIV antibody for the tests to detect. Even if you go for an HIV test 2 or 3 weeks later, an antibody test result might be negative because your body still has not produced antibodies (an antigen test may be positive at an earlier time point).
A PDC written to clarify the status of disease should include the following options:
Human immunodeficiency virus [HIV] disease. 2015. Billable Thru Sept 30/2015. Non-Billable On/After Oct 1/2015. ICD-9-CM 042 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 042 should only be used for claims with a date of service on or before September 30, 2015.
Family history of human immunodeficiency virus [HIV] disease Z83. 0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2022 edition of ICD-10-CM Z83. 0 became effective on October 1, 2021.
Once a patient is coded to B20, they will always have B20 coded on their record; they will never go back to being coded using the asymptomatic code Z21. Code Z21 is used for patients who are asymptomatic, meaning they are HIV positive but have never had an HIV-related condition.
If a patient is being seen to determine his/her HIV status, use code Z11. 4, Encounter for screening for human immunodeficiency virus (HIV). Use additional codes for any associated high risk behavior (Z72. -).
Overview. The California Code of Regulations (17 CCR 2643.10) requires that positive cases of HIV be reported to the local health authority.
If a patient is admitted for an HIV-related condition, B20 Human immunodeficiency virus (HIV) disease should be sequenced first, followed by additional diagnosis codes for all reported HIV-related conditions.
ICD-10 Coding: Diagnosis of B20 (HIV)
ICD-10 code Z21 for Asymptomatic human immunodeficiency virus [HIV] infection status is a medical classification as listed by WHO under the range - Factors influencing health status and contact with health services .
Z71. 7 — Human immunodeficiency virus [HIV] counseling.
Sequencing. The proper sequencing for HIV depends on the reason for the admission or encounter. When a patient is admitted for an HIV-related condition, sequence B20 Human immunodeficiency virus [HIV] disease first, followed by additional diagnosis codes for all reported HIV-related conditions. Conditions always considered HIV-related include ...
In the inpatient setting, HIV is the only condition that must be confirmed to select the code. All other conditions documented as “probable,” suspected,” likely,” “questionable,” “probable,” or “still to rule out” are coded as if they exist in the inpatient setting. Dx. Sequencing. The proper sequencing for HIV depends on the reason for ...
HIV infection/illness is coded as a diagnosis only for confirmed cases. Confirmation does not require documentation of a positive blood test or culture for HIV; the physician’s diagnostic statement that the patient is HIV positive or has an HIV-related illness is sufficient. In the inpatient setting, HIV is the only condition ...