R62 - Lack of expected normal physiological development in childhood and adults
R62.5 - Other and unspecified lack of expected normal physiological development in childhood
Excludes 1:
-HIV disease resulting in failure to thrive (B20)
-physical retardation due to malnutrition (E45)
R62.50 - Unspecified lack of expected normal physiological development in childhood
R62.51 - Failure to thrive (child)
R62.52 - Short stature (child)
R62.59 - Other lack of expected normal physiological development in childhood