Oth maternal infec/parastc diseases comp preg, first tri

This code signifies the presence of a maternal infectious or parasitic disease, not otherwise specified or classified elsewhere, that is adversely affecting a pregnancy during the first trimester. These are conditions that directly impact the mother's health and have potential implications for the developing fetus.

Apply this code when documentation indicates a maternal infection or parasitic infestation (e.g., toxoplasmosis, listeriosis, or other systemic infections not having a specific O-code) is complicating a pregnancy that is currently in its first trimester. The medical record must clearly state the infectious agent or disease and its impact on the pregnancy.

• Always sequence the specific infection code (e.g., B58.9 for toxoplasmosis, unspecified) before this O-code.
• Ensure the documentation explicitly states the trimester of pregnancy; if not specified, query the provider.
• Do not use this code for infections with dedicated O-codes (e.g., O98.0-O98.7 for syphilis, gonorrhea, etc.).