Infections of bladder in pregnancy, unspecified trimester

This diagnosis code signifies a urinary tract infection specifically affecting the bladder (cystitis) that occurs during a pregnancy, where the specific trimester of the pregnancy is not documented or specified. It indicates the presence of an infectious process within the lower urinary tract of a pregnant patient.

Use this code when a pregnant patient presents with symptoms of a bladder infection, such as dysuria, frequency, urgency, or suprapubic pain, and a diagnosis of cystitis is confirmed, but the provider's documentation does not specify the trimester of pregnancy. Supporting documentation would include a physician's note diagnosing "UTI in pregnancy" or "cystitis in pregnancy" without further trimester detail.

• Always attempt to clarify the trimester from the provider if possible, as more specific codes exist for each trimester.
• Do not use this code if the infection is documented as affecting the kidney (pyelonephritis); use the appropriate O23.0- code instead.
• This code should be sequenced as a primary diagnosis when the bladder infection is the reason for the encounter, or as a secondary diagnosis when managed concurrently with other pregnancy-related conditions.