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E87.0

Billable

Hyperosmolality and hypernatremia

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A condition where the blood has too much salt (sodium) relative to water, causing cells to shrink and potentially leading to confusion, seizures, or other neurological symptoms.

Coding Tips

  • Document the severity (mild, moderate, severe) and acuity (acute vs. chronic) when available
  • Identify the underlying cause such as excessive water loss, inadequate water intake, or sodium retention

Excludes 2 — Not included here, may code separately

  • diabetes with hyperosmolarity (E08, E09, E11, E13 with final characters .00 or .01)

Code Hierarchy

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