Is Q99.818 a billable ICD-10-CM code?

Yes. Q99.818 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does Q99.818 sit in the tabular list?

Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0), in the block Chromosomal abnormalities, not elsewhere classified (Q90-Q99).

Q99.818

Q99.818 — Other Usher syndrome

Billable / specific codeICD-10-CMPOA exempt

Q99.818 is a billable, specific ICD-10-CM code for other usher syndrome. It is valid for submission on a claim.

Inclusion terms

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

Usher syndrome, type 4

Risk adjustment

Q99.818 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.

Related codes at this level

Codes that share Q99.81. If Q99.818 is not quite right, the correct code is usually one of these.

Questions about Q99.818

Is Q99.818 a billable ICD-10-CM code?: Yes. Q99.818 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does Q99.818 sit in the tabular list?: Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0), in the block Chromosomal abnormalities, not elsewhere classified (Q90-Q99).