ICD-10-CM 2027
ICD-10 code for hair congenital twist
From the official ICD-10-CM alphabetic index entry “Twist, twisted › hair (congenital)”. Page updated September 29, 2026.
About coding hair congenital twist
The ICD-10-CM code for hair congenital twist is Q84.1 (Congenital morphological disturbances of hair, not elsewhere classified).
Within Q84 (other congenital malformations of integument), Q84.1 is specifically for congenital morphological disturbances of hair, not elsewhere classified. Related codes cover congenital alopecia (Q84.0), other congenital malformations of hair (Q84.2), Anonychia (Q84.3), congenital leukonychia (Q84.4), enlarged and hypertrophic nails (Q84.5), other congenital malformations of nails (Q84.6), other specified congenital malformations of integument (Q84.8) and congenital malformation of integument, unspecified (Q84.9).
Don't report Q84.1 together with the conditions in its Excludes1 note: Menkes' kinky hair syndrome (E83.09).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Don't confuse with (Excludes1 for Q84.1)
- Menkes' kinky hair syndrome (E83.09)
Common questions about hair congenital twist ICD-10 codes
What is the ICD-10 code for hair congenital twist?
- Q84.1 — Congenital morphological disturbances of hair, not elsewhere classified.
Is Q84.1 billable?
- Yes. Q84.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Q84.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict Q84.1 as a principal diagnosis.
Is Q84.1 a CC or MCC?
- No. Q84.1 is neither a CC nor an MCC under MS-DRG v44.0.