E03.2 — Hypothyroidism due to medicaments and other exogenous substances
E03.2 is a billable, specific ICD-10-CM code for hypothyroidism due to medicaments and other exogenous substances. It is valid for submission on a claim.
Code first
The underlying condition must be sequenced before this code.
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Add a secondary code to capture the detail described below.
Risk adjustment
E03.2 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
E03.2 is named in 2 Medicare coverage policies — 2 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A57326Billing and Coding: Electrocardiograms
- A57361Billing and Coding: Monitored Anesthesia Care
How E03.2 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to E03.2.
- Hypothyroidism›iatrogenic NEC
- Hypothyroidism›due to›exogenous substance NEC
- Hypothyroidism›due to›medicament NEC
- Hypothyroidism›due to›P-aminosalicylic acid(PAS)
- Hypothyroidism›due to›phenylbutazone
- Hypothyroidism›due to›resorcinol
- Hypothyroidism›due to›sulfonamide
- Hypothyroidism›due to›thiourea group drugs
Related codes at this level
Codes that share E03. If E03.2 is not quite right, the correct code is usually one of these.
Questions about E03.2
- Is E03.2 a billable ICD-10-CM code?
- Yes. E03.2 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does E03.2 sit in the tabular list?
- Endocrine, nutritional and metabolic diseases (E00-E89), in the block Disorders of thyroid gland (E00-E07).