2026 ICD-10-CM Diagnosis Code E07.81Sick-euthyroid syndrome
ICD-10-CM Codes›E00–E89›E00-E07›E07
- Billable — Valid for Submission
- Not Chronic
E07.81 is a billable ICD-10-CM diagnosis code for sick-euthyroid syndrome. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 947 through 948. Coders also document this condition as euthyroid with thyroid antibodies. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Thyroid disorders.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Euthyroid with thyroid antibodies
- Sick-euthyroid syndrome
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Euthyroid sick-syndrome
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- Sick-euthyroid syndrome - E07.81
- Syndrome - See Also: Disease;
- sick-euthyroid - E07.81
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Sick-euthyroid syndrome
- Syndrome
- sick-euthyroid
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Thyroid Diseases
Your thyroid is a small, butterfly-shaped gland in the front of your neck. It makes hormones that control the way the body uses energy. These hormones affect nearly every organ in your body and control many of your body's most important functions. For example, they affect your breathing, heart rate, weight, digestion, and moods.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert E07.81 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About E07.81Overview
Is E07.81 (Other specified disorders of thyroid) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report sick-euthyroid syndrome on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does E07.81 group to?
When sick-euthyroid syndrome is the principal diagnosis on an inpatient stay, it groups to MS-DRG 947, 948, with relative weights from 0.8005 to 1.2694 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of E07.81?
Under the General Equivalence Mappings, sick-euthyroid syndrome converts to ICD-9-CM 790.94 (euthyroid sick syndrome). The mapping is a direct match.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
