E89.1

Postprocedural hypoinsulinemia

Billable code

This code does not map to a risk-adjusting HCC in the loaded models.

Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

This code · E89.1
Excludes 1

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

Use additional

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

Code first

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

Synonyms

Postpancreatectomy hyperglycemia Postsurgical hypoinsulinemia

Inherited from E89Postproc endocrine and metabolic comp and disorders, NEC
Excludes 2

intraoperative complications of endocrine system organ or structure (E36.0-, E36.1-, E36.8)

Inherited from chapter 4Endocrine, nutritional and metabolic diseases
Excludes 1

transitory endocrine and metabolic disorders specific to newborn (P70-P74)

Note

All neoplasms, whether functionally active or not, are classified in Chapter 2. Appropriate codes in this chapter (i.e. E05.8, E07.0, E16-E31, E34.-) may be used as additional codes to indicate either functional activity by neoplasms and ectopic endocrine tissue or hyperfunction and hypofunction of endocrine glands associated with neoplasms and other conditions classified elsewhere.

Official Guidelines for E89.1

FY 2026 ›
I.C.4Chapter-specific guidanceChapter 4: Endocrine, Nutritional, and Metabolic Diseases (E00-E89)

Subsections

Sections that reference E89.1

Sections whose FY 2026 text names E89.1, its E89 category, or a range containing it — the chapter guidance above is the authoritative source.

Find E89.1 in the alphabetic index

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