Is E86.9 a billable ICD-10-CM code?

Yes. E86.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does E86.9 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 E86.9?

E86.9 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 E86.9 (E86) and apply to it just the same.

E86.9

E86.9 — Volume depletion, unspecified

Billable / specific codeICD-10-CM

E86.9 is a billable, specific ICD-10-CM code for volume depletion, unspecified. It is valid for submission on a claim.

Excludes1 inherited from the categories above E86.9

These are not written on E86.9, but they bind it: a note on a category applies to every code beneath it. Billing E86.9 with anything listed here is a denial.

Written on E86 — Volume depletion

dehydration of newborn (P74.1)
postprocedural hypovolemic shock (T81.19)
traumatic hypovolemic shock (T79.4)

Excludes2 inherited from the categories above E86.9

Also inherited, and the opposite of Excludes1: these conditions are not part of E86.9, but a patient can have both, so you may code both.

Written on E86 — Volume depletion

hypovolemic shock NOS (R57.1)

Risk adjustment

E86.9 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

E86.9 is named in 4 Medicare coverage policies — 4 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A56500Billing and Coding: Cardiac Catheterization and Coronary Angiography
A56625Billing and Coding: Echocardiography
A57361Billing and Coding: Monitored Anesthesia Care
A59186Billing and Coding: Magnesium

How E86.9 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 E86.9.

Depletion›extracellular fluid
Depletion›volume NOS
Fluid›loss(acute)
Loss›fluid(acute)

Code history

E86.9 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share E86. If E86.9 is not quite right, the correct code is usually one of these.

Questions about E86.9

Is E86.9 a billable ICD-10-CM code?: Yes. E86.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does E86.9 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 E86.9?: E86.9 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 E86.9 (E86) and apply to it just the same.