Specified anomalies of hair

This code represents congenital structural abnormalities of the hair shaft or follicle that are present at birth. These anomalies can affect hair texture, growth patterns, and overall hair health, often presenting as fragile, sparse, or unusually coarse hair.

Use this code when documentation specifies a congenital hair anomaly, such as monilethrix, pili torti, trichorrhexis nodosa (congenital form), or uncombable hair syndrome. This diagnosis should be supported by clinical examination findings and, if performed, microscopic analysis of hair samples.

• Distinguish congenital hair anomalies from acquired hair conditions, which are coded differently.
• Ensure the documentation clearly states the anomaly is "congenital" or "present at birth."
• Do not use for general hair loss (alopecia) unless a specific congenital structural defect is identified.