MCMCB Pro
Q84.2

Q84.2Other congenital malformations of hair

Billable / specific codeICD-10-CMPOA exempt

Q84.2 is a billable, specific ICD-10-CM code for other congenital malformations of hair. It is valid for submission on a claim.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Congenital hypertrichosis
  • Congenital malformation of hair NOS
  • Persistent lanugo

Other codes that can never be billed with Q84.2

These codes carry an Excludes1 note pointing at Q84.2. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading Q84.2 alone.

  • L68Hypertrichosis

Risk adjustment

Q84.2 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

How Q84.2 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to Q84.2.

  • Anomaly, anomaloushair
  • Canitiescongenital
  • Grayness, haircongenital
  • Hypertrichosiscongenital
  • Hypertrichosislanuginosa
  • Hypoplasia, hypoplastichair
  • Malformationhair
  • Persistence, persistentlanugo
  • Ulerythemaophryogenes, congenital

Related codes at this level

Codes that share Q84. If Q84.2 is not quite right, the correct code is usually one of these.

Questions about Q84.2

Is Q84.2 a billable ICD-10-CM code?
Yes. Q84.2 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does Q84.2 sit in the tabular list?
Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0), in the block Other congenital malformations (Q80-Q89).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.