E07.89
BillableOther specified disorders of thyroid
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is E07.89 an HCC code?
No. E07.89 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
HCC Category Mapping
RAF weights shown are the community, non-dual, aged base weights from the CMS risk adjustment model file. Actual per-patient RAF contribution depends on member segment, interactions, and the model year used by the payer. V28 is the CMS-HCC model phased in over payment years 2024–2026; V24 remains in use during the transition and for historical data.
MEAT Criteria for E07.89
For E07.89to count as a valid HCC diagnosis in a given encounter, the provider's documentation must show MEAT: Monitor, Evaluate, Assess, or Treat. A diagnosis from a prior year does not carry forward automatically — it has to be re-documented and supported each calendar year.
- MMonitor: signs, symptoms, disease progression, or lab trending documented in the note
- EEvaluate: test results, medication response, or physical findings reviewed by the provider
- AAssess: explicit mention in the assessment or plan with acknowledgment of status
- TTreat: medication, referral, procedure, therapy, or counseling tied to the diagnosis
Only one of M/E/A/T is required to support the code, but the documentation must be specific enough to show that the provider actually addressed E07.89 during that encounter — not just copy-forwarded from a problem list.
What This Code Means
E07.89 is the ICD-10-CM diagnosis code for other specified disorders of thyroid. Other specified thyroid disorders not classified elsewhere, including various thyroid dysfunctions and abnormalities. E07.89 sits in the ICD-10-CM chapter for endocrine, nutritional and metabolic diseases (e00-e89), within the section covering disorders of thyroid gland (e00-e07).
E07.89 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
Maps to RxHCC 44 (Osteoporosis, Vertebral and Pathological Fractures) in the prescription drug model. This code does not map to CMS-HCC v28 or v24 models. The RxHCC mapping is minimal, and the clinical priority should be accurate characterization of the thyroid disorder to guide appropriate treatment.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for E07.89 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Use this code only when a more specific thyroid disorder code is not available
- •Clearly document the specific thyroid condition in the medical record for clarity
Clinical Significance
Other specified disorders of thyroid encompasses thyroid conditions not classified in more specific categories, including sick euthyroid syndrome (euthyroid sick syndrome/non-thyroidal illness syndrome), thyroid hormone resistance syndromes, and other rare thyroid functional abnormalities. Sick euthyroid syndrome is particularly common in hospitalized critically ill patients, where thyroid function tests are abnormal due to systemic illness rather than intrinsic thyroid disease. Accurate differentiation from true thyroid disease prevents unnecessary treatment.
Documentation Requirements
- ✓Document the specific thyroid disorder being classified, supporting laboratory values, and the clinical context distinguishing this from more common thyroid conditions.
- ✓For sick euthyroid syndrome, document the underlying systemic illness and note that abnormal thyroid tests are secondary rather than primary thyroid disease.
Commonly Confused Codes
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