E03.2

E03.2: Hypothyroidism due to medicaments and other exogenous substances

Billable / specific codeICD-10-CM

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.

Check E03.2 with the rest of the claim: free scrubber

Code first

The underlying condition must be sequenced before this code.

poisoning due to drug or toxin, if applicable (T36-T65 with fifth or sixth character 1-4)

Use additional code

Add a secondary code to capture the detail described below.

code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

Excludes1 inherited from the categories above E03.2

A category’s note binds every code beneath it.

Written on E03: Other hypothyroidism

iodine-deficiency related hypothyroidism (E00-E02)
postprocedural hypothyroidism (E89.0)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

E03.2 is named in 2 Medicare coverage policies: 2 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A57326Billing and Coding: Electrocardiograms
A57361Billing and Coding: Monitored Anesthesia Care

Alphabetic index entries that lead here

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

Code history

Unchanged in every release from FY2024 to FY2027.