Infections of kidney in pregnancy, second trimester

This code signifies a bacterial infection affecting the renal parenchyma or collecting system that occurs during the second trimester of gestation. It encompasses conditions such as pyelonephritis or other kidney infections specifically diagnosed in a pregnant patient.

Apply this code when documentation confirms a diagnosis of a kidney infection in a pregnant patient who is currently in her second trimester. Supporting documentation should include the specific trimester of pregnancy and a definitive diagnosis of a renal infection.

• Ensure the documentation clearly specifies "second trimester" to avoid miscoding.
• Do not confuse with urinary tract infections (UTIs) that are not specifically localized to the kidney.
• Sequence this code as a primary diagnosis when the kidney infection is the reason for the encounter, or as a secondary diagnosis if managed concurrently with another primary obstetric condition.