Decreased fetal movements, unspecified trimester, fetus 4

This code signifies a maternal diagnosis of reduced fetal activity, where the specific gestational trimester is not documented. It specifically applies when the pregnancy involves quadruplets, and the decreased movement is attributed to the fourth fetus.

Apply this code when documentation indicates a pregnant patient experiencing decreased fetal movements, but the trimester is not specified. This code is appropriate only for a multifetal gestation of quadruplets, and the reduced movement is explicitly linked to the fourth fetus.

• Ensure documentation clearly identifies the pregnancy as quadruplets and specifies that the decreased movement pertains to the fourth fetus.
• Avoid using this code if the trimester is known; instead, select the appropriate trimester-specific code (O36.8114, O36.8124, O36.8134).
• Do not use this code for singleton pregnancies or other multifetal gestations; specific codes exist for those scenarios.