Is Q87.87 a billable ICD-10-CM code?

Yes. Q87.87 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does Q87.87 sit in the tabular list?

Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0), in the block Other congenital malformations (Q80-Q89).

What cannot be coded together with Q87.87?

Q87.87 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above Q87.87 (Q87.8) and apply to it just the same.

Q87.87

Q87.87 — Hao-Fountain Syndrome

Billable / specific codeICD-10-CMPOA exempt

Q87.87 is a billable, specific ICD-10-CM code for hao-fountain syndrome. It is valid for submission on a claim.

Use additional code

Add a secondary code to capture the detail described below.

code, if applicable, for associated conditions such as:
autism spectrum disorder (F84.0)
developmental speech disorder (F80.-)
epilepsy, by specific type (G40.-)
intellectual disabilities (F70-F79)
pervasive developmental disorders (F84.-)

Inclusion terms

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

HAFOUS

Excludes1 inherited from the categories above Q87.87

These are not written on Q87.87, but they bind it: a note on a category applies to every code beneath it. Billing Q87.87 with anything listed here is a denial.

Written on Q87.8 — Other specified congenital malformation syndromes, not elsewhere classified

Zellweger syndrome (E71.510)

Other codes that can never be billed with Q87.87

These codes carry an Excludes1 note pointing at Q87.87. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading Q87.87 alone.

Q67Congenital musculoskeletal deformities of head, face, spine and chest
Q75Other congenital malformations of skull and face bones
Q89.7Multiple congenital malformations, not elsewhere classified

Risk adjustment

Q87.87 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.

Medicare coverage

Q87.87 is named in 6 Medicare coverage policies — 6 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax
A56612Billing and Coding: CT of the Head
A56775Billing and Coding: Magnetic Resonance Angiography
A56775Billing and Coding: Magnetic Resonance Angiography

How Q87.87 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 Q87.87.

HAFOUS(Hao-Fountain syndrome)
Syndrome›Hao-Fountain(HAFOUS)

Code history

What changed, and when. Derived by diffing consecutive CMS release files — which matters when you are defending a code assigned under an earlier edition.

addedFY2024-FY2026
Hao-Fountain Syndrome

Related codes at this level

Codes that share Q87.8. If Q87.87 is not quite right, the correct code is usually one of these.

Questions about Q87.87

Is Q87.87 a billable ICD-10-CM code?: Yes. Q87.87 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does Q87.87 sit in the tabular list?: Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0), in the block Other congenital malformations (Q80-Q89).
What cannot be coded together with Q87.87?: Q87.87 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above Q87.87 (Q87.8) and apply to it just the same.