ICD-10-CM 2027
ICD-10 code for thyroid absence
From the official ICD-10-CM alphabetic index entry “Absence (of) (organ or part) (complete or partial) › thyroid (gland) (acquired)”. Page updated September 29, 2026.
About coding thyroid absence
The ICD-10-CM code for thyroid absence is E89.0 (Postprocedural hypothyroidism). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on E89.0.
Within E89 (postprocedural endocrine and metabolic complications and disorders, not elsewhere classified), E89.0 is specifically for postprocedural hypothyroidism. Related codes cover postprocedural hypoinsulinemia (E89.1), postprocedural hypoparathyroidism (E89.2), postprocedural hypopituitarism (E89.3), postprocedural ovarian failure (E89.4), postprocedural testicular hypofunction (E89.5), postprocedural adrenocortical (-medullary) hypofunction (E89.6) and other postprocedural endocrine and metabolic complications and disorders (E89.8).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 643 (Endocrine Disorders with MCC, relative weight 1.6139), DRG 644 (Endocrine Disorders with CC, relative weight 1.0044) and DRG 645 (Endocrine Disorders without CC/MCC, relative weight 0.7459), in MDC 10 (Endocrine, Nutritional and Metabolic Diseases and Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific thyroid absence codes (official index)
Common questions about thyroid absence ICD-10 codes
What is the ICD-10 code for thyroid absence?
- E89.0 — Postprocedural hypothyroidism. More specific codes apply when the documentation supports them: Q31.8, E03.1.
What is the ICD-10 code for congenital thyroid absence?
- E03.1 — Congenital hypothyroidism without goiter.
Is E89.0 billable?
- Yes. E89.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can E89.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict E89.0 as a principal diagnosis.
Is E89.0 a CC or MCC?
- No. E89.0 is neither a CC nor an MCC under MS-DRG v44.0.