Q84.4
✓ Billable
Congenital leukonychia
ICD-10-CM · FY2026 · Congenital Malformations, Deformations and Chromosomal Abnormalities
Code
Q84.4
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Congenital Malformations, Deformations and Chromosomal Abnormalities
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code Q84.4?
ICD-10-CM code Q84.4 represents Congenital leukonychia. It is a billable diagnosis code in the Congenital Malformations, Deformations and Chromosomal Abnormalities chapter, effective October 1, 2025 – September 30, 2026.
Is Q84.4 billable?
Yes. Q84.4 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is Q84.4 in?
Q84.4 belongs to the Congenital Malformations, Deformations and Chromosomal Abnormalities chapter (Q00–Q99) of ICD-10-CM.
Related codes in the Q84 category
Q84
Other congenital malformations of integument
Non-billable
Q84.0
Congenital alopecia
Billable
Q84.1
Congenital morphological disturbances of hair, not elsewhere classified
Billable
Q84.2
Other congenital malformations of hair
Billable
Q84.3
Anonychia
Billable
Q84.5
Enlarged and hypertrophic nails
Billable
Q84.6
Other congenital malformations of nails
Billable
Q84.8
Other specified congenital malformations of integument
Billable
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