E86Volume depletion

E86 is the ICD-10-CM diagnosis code for volume depletion. It belongs to block E70-E88 (metabolic disorders) and chapter 4 (endocrine, nutritional and metabolic diseases). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: E86.0 (Dehydration), E86.1 (Hypovolemia) and E86.9 (unspecified).

Don't report E86 together with the conditions in its Excludes1 note: dehydration of newborn (P74.1), postprocedural hypovolemic shock (T81.19) and traumatic hypovolemic shock (T79.4).

The conditions in its Excludes2 note aren't part of E86, but may be coded alongside it if the patient has both: hypovolemic shock NOS (R57.1).

Use an additional code(s) for any associated disorders of electrolyte and acid-base balance (E87.-).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.