E30.1

ICD-10-CM Coding Rules

• E30.1

Applicable To

• Precocious menstruation

Approximate Synonyms

• Constitutional sexual precocity

• Cryptogenic sexual precocity

• Early menarche

• Precocious pubarche

• Precocious sexual development

• Premature menarche

• Sexual precocity, constitutional

• Sexual precocity, cryptogenic

Clinical Information

• A disorder characterized by unusually early development of secondary sexual features; the onset of sexual maturation begins usually before age 8 for girls and before age 9 for boys.

• Development of sexual maturation in boys and girls at a chronological age that is 2.5 standard deviations below the mean age at onset of puberty in the population. This early maturation of the hypothalamic-pituitary-gonadal axis results in sexual precocity, elevated serum levels of gonadotropins and gonadal steroid hormones such as estradiol and testosterone.

• Unusually early sexual development or maturity; premature puberty.

• Unusually early sexual maturity.

Details

• E30.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

• The 2023 edition of ICD-10-CM E30.1 became effective on October 1, 2022.

• This is the American ICD-10-CM version of E30.1 – other international versions of ICD-10 E30.1 may differ.