Is E87 a billable ICD-10-CM code?

No. E87 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does E87 sit in the tabular list?

Endocrine, nutritional and metabolic diseases (E00-E89), in the block Metabolic disorders (E70-E88).

What cannot be coded together with E87?

E87 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

E87

E87 — Other disorders of fluid, electrolyte and acid-base balance

Non-billable headerICD-10-CM

E87 is a non-billable header ICD-10-CM code for other disorders of fluid, electrolyte and acid-base balance. 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.

diabetes insipidus (E23.2)
electrolyte imbalance associated with hyperemesis gravidarum (O21.1)
electrolyte imbalance following ectopic or molar pregnancy (O08.5)
familial periodic paralysis (G72.3)
metabolic acidemia in newborn, unspecified (P19.9)

Other codes that can never be billed with E87

These codes carry an Excludes1 note pointing at E87. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading E87 alone.

J95.87Transfusion-associated dyspnea (TAD)

Risk adjustment

E87 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 E87

9 child codes. Green means billable.

Questions about E87

Is E87 a billable ICD-10-CM code?: No. E87 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does E87 sit in the tabular list?: Endocrine, nutritional and metabolic diseases (E00-E89), in the block Metabolic disorders (E70-E88).
What cannot be coded together with E87?: E87 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.