Other specified diseases of hair and hair follicles

This code encompasses various uncommon or less precisely defined conditions affecting the hair and its follicular structures that are not categorized elsewhere. It covers a range of hair disorders beyond common alopecia or inflammatory conditions, often involving structural abnormalities or specific acquired hair shaft defects.

Apply this code when documentation specifies a hair or hair follicle disease that doesn't fit into more specific ICD-9-CM categories, such as pili torti, monilethrix, trichorrhexis nodosa, or other acquired hair shaft anomalies. Supporting documentation should clearly describe the specific hair disorder diagnosed by a dermatologist or other specialist.

• Ensure the physician's documentation explicitly states a specific hair or hair follicle disease that is not classified under other more precise codes (e.g., 704.0 for alopecia, 704.1 for hirsutism).
• Avoid using this code if a more specific ICD-9-CM code exists for the documented hair condition.
• Review the entire 704 category to confirm no other subcategory is more appropriate before assigning this "other specified" code.