2025 ICD-10-CM code Q84.1
(Active) Effective Date: N/A Congenital malformations, deformations and chromosomal abnormalities - Other congenital malformations of integument 17 Feed
Congenital morphological disturbances of hair, not elsewhere classified. This includes conditions such as beaded hair (monilethrix) and pili annulati.
Medical necessity for the use of this code generally involves the need to document and track the congenital hair abnormality, facilitate genetic counseling if appropriate, and potentially guide treatment decisions.
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- Q84 Other congenital malformations of integumentQ84.0 Congenital alopeciaQ84.1 Congenital morphological disturbances of hair, not elsewhere classifiedQ84.2 Other congenital malformations of hairQ84.3 AnonychiaQ84.4 Congenital leukonychiaQ84.5 Enlarged and hypertrophic nailsQ84.6 Other congenital malformations of nailsQ84.8 Other specified congenital malformations of integumentQ84.9 Congenital malformation of integument, unspecified
In simple words: This code represents a birth defect affecting the shape and structure of hair, excluding specific conditions like Menkes' syndrome.
Congenital morphological disturbances of hair, not elsewhere classified. Conditions included in this code are beaded hair (monilethrix) and pili annulati.Excludes1: Menkes' kinky hair syndrome (E83.09)
Example 1: A newborn infant is examined and found to have beaded hair (monilethrix). This is a congenital condition where the hair shaft has alternating thick and thin areas, giving it a beaded appearance. The diagnosis is confirmed by microscopic examination of the hair., A child presents with pili annulati, a condition where the hair shaft has alternating light and dark bands, giving it a ringed appearance. This is determined to be a congenital condition, and no other underlying causes are found., A pediatrician examines a baby and notes unusual hair structure which is not consistent with any specific diagnosed syndrome.Microscopic exam shows abnormalities in the hair shaft. After ruling out other conditions, a diagnosis of Q84.1 is made.
Documentation should include a detailed description of the hair abnormality, including microscopic examination findings if available. Any relevant family history of similar hair conditions should also be noted.It's crucial to document the absence of features suggesting alternative diagnoses, such as Menkes' syndrome.
** This code is specifically for congenital morphological disturbances of hair that are not classified elsewhere.It's essential to distinguish this from acquired hair disorders or syndromes that include hair abnormalities as part of their presentation.