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E89.1

Billable

Postprocedural hypoinsulinemia

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

What This Code Means

Insufficient insulin production that develops after a surgical procedure, typically following pancreatic surgery.

Coding Tips

  • •Document the specific procedure that caused the insulin deficiency
  • •Differentiate from diabetes mellitus by confirming the postprocedural etiology

Excludes 1 — Do NOT code together

  • transient postprocedural hyperglycemia (R73.9)
  • transient postprocedural hypoglycemia (E16.2)

Use Additional Code

  • code, if applicable, to identify:
  • acquired absence of pancreas (Z90.41-)
  • insulin use (Z79.4)

Code First

  • , if applicable, diabetes mellitus (postpancreatectomy) (postprocedural) (E13.-)

Code Hierarchy

└E89Postprocedural endocrine and metabolic complications and disorders, not elsewhere classified└E89.1Postprocedural hypoinsulinemia
└E89.1Postprocedural hypoinsulinemia

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