Is H11 a billable ICD-10-CM code?

No. H11 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does H11 sit in the tabular list?

Diseases of the eye and adnexa (H00-H59), in the block Disorders of conjunctiva (H10-H11).

What cannot be coded together with H11?

H11 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

H11

H11 — Other disorders of conjunctiva

Non-billable headerICD-10-CM

H11 is a non-billable header ICD-10-CM code for other disorders of conjunctiva. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

keratoconjunctivitis (H16.2-)

Other codes that can never be billed with H11

These codes carry an Excludes1 note pointing at H11. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading H11 alone.

H11.0Pterygium of eye
H10.81Pingueculitis

Risk adjustment

H11 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.

Code to one of these instead H11

7 child codes. Green means billable.

Questions about H11

Is H11 a billable ICD-10-CM code?: No. H11 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does H11 sit in the tabular list?: Diseases of the eye and adnexa (H00-H59), in the block Disorders of conjunctiva (H10-H11).
What cannot be coded together with H11?: H11 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.