Decreased fetal movements, unspecified trimester, fetus 3

This code signifies a maternal diagnosis of reduced fetal activity when the specific trimester of pregnancy is not documented, and the finding pertains to the third fetus in a multiple gestation. It indicates a potential concern for fetal well-being requiring further evaluation.

Apply this code when documentation explicitly states "decreased fetal movements" or "reduced fetal activity" without specifying the trimester, and the patient is carrying triplets or more, with the concern attributed to the third fetus. This code is appropriate when the medical record lacks the precision to assign a trimester-specific code.

• Ensure the documentation clearly identifies the finding as related to the third fetus in a multiple gestation.
• Avoid using this code if the trimester is known; instead, select the appropriate trimester-specific code (O36.811-, O36.812-, O36.813-).
• Always sequence this code after the primary obstetric code (e.g., O30.- for multiple gestation).