Is E10.3 a billable ICD-10-CM code?

No. E10.3 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does E10.3 sit in the tabular list?

Endocrine, nutritional and metabolic diseases (E00-E89), in the block Diabetes mellitus (E08-E13).

E10.3

E10.3 — Type 1 diabetes mellitus with ophthalmic complications

Non-billable headerICD-10-CM

E10.3 is a non-billable header ICD-10-CM code for type 1 diabetes mellitus with ophthalmic complications. It cannot be billed on its own: choose one of the more specific child codes below.

Other codes that can never be billed with E10.3

These codes carry an Excludes1 note pointing at E10.3. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading E10.3 alone.

H28Cataract in diseases classified elsewhere
H36Retinal disorders in diseases classified elsewhere

Risk adjustment

E10.3 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 E10.3

8 child codes. Green means billable.

Related codes at this level

Codes that share E10. If E10.3 is not quite right, the correct code is usually one of these.

Questions about E10.3

Is E10.3 a billable ICD-10-CM code?: No. E10.3 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does E10.3 sit in the tabular list?: Endocrine, nutritional and metabolic diseases (E00-E89), in the block Diabetes mellitus (E08-E13).