E89.0

Postprocedural hypothyroidism

Risk-adjusting (HCC)Billable code

HCC risk adjustment mapping

RxHCC V08

RXHCC44

Thyroid Disorders

Coding notes

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

This code · E89.0

Synonyms

Postirradiation hypothyroidism Postsurgical hypothyroidism

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 E89.0

FY 2026 ›

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

Subsections

Sections that reference E89.0

I.C.4.a.6)(b)(i)Secondary diabetes mellitus due to pancreatectomy
… diabetes mellitus (lack of insulin due to the surgical removal of all or part of the pancreas), assign code E89.1, Postprocedural hypoinsulinemia. …

Sections whose FY 2026 text names E89.0, its E89 category, or a range containing it — the chapter guidance above is the authoritative source.

Find E89.0 in the alphabetic index

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