AHA Coding Clinic® for ICD-9 - 1988 Fourth Quarter

Azotemia

Azotemia refers to an alteration in urinary function. It involves an elevated serum concentration of nonprotein nitrogenous compounds, primarily urea nitrogen, but also creatinine, amino acids, uric acids, creatine, and ammonia. Azotemia is produced by diminished glomerular filtration of these compounds by the kidney. Azotemia may be further described as prerenal, postrenal, or renal azotemia states. Prerenal azotemia, 788.9, postrenal azotemia, 788.9, and azotemia (renal), 790.6, refer to marked elevation of urea nitrogen (and creatine). However, the term azotemia may be used in reference to the presence of acute renal failure, 584.9, or chronic renal...

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