Age-Specific PSA normal ranges use different age-specific cut-offs to interpret the results of PSA tests. However, negative biopsies can still occur even after adjusting for age, especially in men over 70 years of age (Catalona et al., 2000). Percentage of free total PSA measures the ratio of the different forms of PSA. Understanding the Link Between Urinary Tract Infections and Prostate-Specific Antigen Levels. Updated on June 3, 2023 (UTI), you may be wondering about the connection between UTIs and prostate-specific antigen (PSA) levels. PSA is a protein produced by the prostate gland, and elevated levels can be a sign of prostate cancer or other The PSA test is a simple blood test that measures the presence of PSA circulating in your bloodstream. This test is usually the first step in any prostate cancer diagnosis. However, the PSA blood test by itself can't tell you if cancer is present. The results are usually reported as nanograms of PSA per milliliter (ng/mL) of blood. R97.20 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2024 edition of ICD-10-CM R97.20 became effective on October 1, 2023. This is the American ICD-10-CM version of R97.20 - other international versions of ICD-10 R97.20 may differ. ICD-10-CM Coding Rules. The combination of total Prostate-Specific Antigen (PSA) level and the ratio of free PSA were set as criteria for evaluating the risk of PCa. Multivariable logistic regression was used in race-stratified analyses to compute odds ratios (OR) and 95% confidence intervals (95% CI) comparing high PCa risk with low PCa risk. Serum prostate-specific antigen (PSA) has been widely used for the detection and monitoring of prostate cancer (PCa) (1,2), since the end of 1980s ().After the identification of PSA in 1979 (), several immunoassays for its quantification in serum have been developed ().Currently available commercial assays for the measurement of total PSA (tPSA) and free PSA (fPSA) are based on the .

psa and free psa levels