ICDcodes.org
FY2027

E89.1 — Postprocedural hypoinsulinemia

BillableCC

Is E89.1 billable?

Yes — E89.1 is billable for FY2027. E89.1 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. E89.1 may be submitted for encounters from October 1, 2026 through September 30, 2027.

E89.1 at a glance

CodeE89.1
DescriptionPostprocedural hypoinsulinemia
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Which MS-DRGs does E89.1 group to?

E89.1 sits in MDC Pre and helps define the logic of 1 MS-DRG (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

  • 008Simultaneous Pancreas, Islet Cell and Kidney Transplantsurgical

As a secondary diagnosis, E89.1 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.

How is E89.1 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to E89.1. They show the wording a clinician may have documented, which often differs from the Tabular description.

  • Hypoinsulinemia, postprocedural
  • Postpancreatectomy hyperglycemia
  • Hyperglycemia, hyperglycemic › postpancreatectomy (transient)
  • Postprocedural › hypoinsulinemia
  • Complication › surgical procedure › hyperglycemia (s) (from) (of)
  • Complication › surgical procedure › hypoinsulinemia (s) (from) (of)
  • Complication › endocrine › postprocedural › hypoinsulinemia (s) (from) (of)

Excludes1 — never code together

The conditions below can never be reported together with E89.1 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

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

Code first

The underlying condition below must be sequenced before E89.1. E89.1 describes a manifestation and cannot be the principal or first-listed diagnosis.

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

Use additional code

Report an additional code alongside E89.1 to fully describe the condition. E89.1 is sequenced first.

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

Inclusion terms

Alternative wording in documentation that is classified to E89.1.

  • Postpancreatectomy hyperglycemia
  • Postsurgical hypoinsulinemia

Excludes1 — never code together — inherited from Chapter 4

The conditions below can never be reported together with E89.1 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

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

Excludes2 — not included here — inherited from E89

The conditions below are not part of E89.1, but a patient may have both at the same time. When documentation supports it, E89.1 and the excluded code may both be reported.

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

How long has E89.1 existed?

E89.1 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

Which codes are confused with E89.1?

ICD-10-CM declares these codes mutually exclusive with E89.1 — exactly one of each pair can be correct for a given encounter.

Which conditions are coded to E89.1?

What other codes are in the E89 family? (7)