Precocious sexual development and puberty, not elsewhere classified

This code signifies the premature onset of secondary sexual characteristics and/or gonadal maturation before the typical age range, which is generally before age 8 in girls and age 9 in boys. It encompasses cases where the underlying cause is not specifically identified or classified elsewhere.

Apply this code when documentation indicates precocious puberty without a specified etiology, such as central precocious puberty, peripheral precocious puberty, or an adrenal cause. It is appropriate for idiopathic cases or when further diagnostic workup is pending or inconclusive.

• Ensure documentation explicitly states "not otherwise specified" or "idiopathic" if a more specific code for precocious puberty is not applicable.
• Do not use this code if a specific cause for precocious puberty (e.g., adrenal hyperplasia, ovarian tumor, CNS lesion) is identified; instead, code the specific etiology.
• Consider sequencing this code as a primary diagnosis when the precocious development is the main reason for the encounter, or as a secondary diagnosis when it's a significant co-morbidity.