Mat care oth fetl abnlt & damag, fetl ms anomal trunk, fts4

This code signifies antenatal care provided to a pregnant patient when there is a confirmed or suspected musculoskeletal anomaly affecting the trunk of the fourth fetus in a multiple gestation pregnancy. This anomaly could involve the spine, ribs, or other skeletal structures within the fetal trunk. The care is specifically focused on monitoring and managing the pregnancy due to this identified fetal condition.

Use this code when a pregnant patient is receiving medical attention because imaging studies (e.g., ultrasound) or other diagnostic tests indicate a musculoskeletal abnormality of the trunk in the fourth fetus. Documentation should clearly specify the fetal trunk anomaly and confirm that the patient is pregnant with quadruplets or more, with the anomaly identified in the fourth fetus.

• Ensure documentation specifies "fetus 4" in a multiple gestation to support the final character.
• Do not confuse with codes for anomalies of other fetal body parts (e.g., limbs, head).
• Always sequence this code as a secondary diagnosis, following the code for the primary reason for the encounter (e.g., routine prenatal care).