Is E13.64 a billable ICD-10-CM code?

No. E13.64 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does E13.64 sit in the tabular list?

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

E13.64

E13.64 — Other specified diabetes mellitus with hypoglycemia

Non-billable headerICD-10-CM

E13.64 is a non-billable header ICD-10-CM code for other specified diabetes mellitus with hypoglycemia. It cannot be billed on its own: choose one of the more specific child codes below.

Use additional code

Add a secondary code to capture the detail described below.

code for hypoglycemia level, if applicable (E16.A-)

Other codes that can never be billed with E13.64

These codes carry an Excludes1 note pointing at E13.64. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading E13.64 alone.

E16.1Other hypoglycemia
E16.2Hypoglycemia, unspecified

Risk adjustment

E13.64 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 E13.64

2 child codes. Green means billable.

Related codes at this level

Codes that share E13.6. If E13.64 is not quite right, the correct code is usually one of these.

Questions about E13.64

Is E13.64 a billable ICD-10-CM code?: No. E13.64 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does E13.64 sit in the tabular list?: Endocrine, nutritional and metabolic diseases (E00-E89), in the block Diabetes mellitus (E08-E13).