ICD-10-CM code · FY2027
E05.91 Thyrotoxicosis, unspecified with thyrotoxic crisis or storm
BillableValid for claims as a specific diagnosis code
About E05.91
EvidencePulse™by 2 Minute Medicine®
Go deeper into hyperthyroidism.
Ask about the latest evidence, the landmark trials or what guidelines recommend, with every study cited. No ads, no sponsored answers.
Coding notes for E05.91
No notes of its own; the notes below apply from the codes above it.
Also applies, from E05 Thyrotoxicosis [hyperthyroidism]
Excludes1 Not coded here: never report these together with this code (use the code given instead).
Chapter 4 notes (apply to every code in it)
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.
Related codes in E05.9
Latest research on hyperthyroidism
- Substantial thyroid disease reclassification under demographic-specific thyroid function reference intervals
- Maternal Alopecia Aerata and the Risk of Various Offspring Comorbidities
- The Scan by 2 Minute Medicine®: the Future of Medicine, Neuralink, the Spotlight on Celine Dion and COVID-19 on Social Media
- Thyroid dysfunction not associated with cognitive decline
- #VisualAbstract: Teprotumumab for the Treatment of Active Thyroid Eye Disease
2MM+
Read the research behind every diagnosis
2MM+ gives you every study summary in full, Classics downloads of the landmark trials, EvidencePulse and HypeCheck, and ad-free reading.
See 2MM+ plansICD-10-CM FY2027 code set, as published by the CDC National Center for Health Statistics (NCHS) and CMS, effective October 1, 2026 to September 30, 2027. Codes, titles and notes are shown as published. Check payer rules and the official guidelines before billing. This page is not medical advice.
Get the app