Final answer:
The correct ICD code for a newborn infant with a unilateral hard cleft palate and cleft lip is Q37.9, which indicates a cleft palate with cleft lip, unspecified.
Step-by-step explanation:
The correct answer to the question regarding the classification of the condition of a newborn infant born with a unilateral hard cleft palate and cleft lip is b) Q37.9. This code corresponds to a cleft palate with cleft lip, unspecified, according to the International Statistical Classification of Diseases and Related Health Problems (ICD). A cleft palate is a condition that arises when the two halves of the hard palate do not completely come together and fuse at the midline, leaving a gap and causing communication between the nasal and oral cavities. A cleft lip occurs when the right and left portions of the upper lip do not properly join. Both cleft lip and cleft palate are significant developmental defects requiring surgical repair to correct.