ICD-10-CM 2027
ICD-10 code for Sick-euthyroid syndrome
From the official ICD-10-CM alphabetic index entry “Sick-euthyroid syndrome”. Page updated September 29, 2026.
About coding Sick-euthyroid syndrome
The ICD-10-CM code for Sick-euthyroid syndrome is E07.81 (Sick-euthyroid syndrome).
Within E07.8 (other specified disorders of thyroid), E07.81 is specifically for Sick-euthyroid syndrome. Related codes cover other specified disorders of thyroid (E07.89).
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 947 (Signs and Symptoms with MCC, relative weight 1.261) and DRG 948 (Signs and Symptoms without MCC, relative weight 0.7835), in MDC 23 (Factors Influencing Health Status and Other Contacts with Health Services), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about Sick-euthyroid syndrome ICD-10 codes
What is the ICD-10 code for Sick-euthyroid syndrome?
- E07.81 — Sick-euthyroid syndrome.
Is E07.81 billable?
- Yes. E07.81 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can E07.81 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict E07.81 as a principal diagnosis.
Is E07.81 a CC or MCC?
- No. E07.81 is neither a CC nor an MCC under MS-DRG v44.0.