Which code represents a large-for-dates liveborn infant delivered at 40 weeks?

• A. O34.02, Z3A.20
• B. O36.63X0, Z3A.40
• C. O03.37, R65.21
• D. O36.4XX0, Z3A.21

Answer: (B)

The correct choice reflects the appropriate coding for a large-for-dates liveborn infant delivered at 40 weeks. The code O36.63X0 specifically denotes a condition of a “large-for-dates” infant, while Z3A.40 indicates the gestational age of the infant at 40 weeks.

This combination effectively communicates both the baby's size categorization and the precise timing of the delivery in terms of gestational weeks. This is critical for medical coding, as it ensures that the records accurately reflect the clinical situation, allowing healthcare providers to understand the unique parameters of the delivery.

The inclusion of both codes is essential; one addresses the concern of the infant's size while the other specifies the timing of the delivery, which is relevant for clinical and billing purposes.