E02

Billable
ChapterE00–E89
Rankcategory
Official Description

Subclinical iodine-deficiency hypothyroidism

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Billable/specific code (valid for reimbursement).
  • •Chapter 4: Endocrine, Nutritional and Metabolic Diseases (E00-E89).

CH4 Parent Instructions

Excludes1(Not coded here)
  • transitory endocrine and metabolic disorders specific to newborn (P70-P74)

Clinical Hierarchy

CH4Endocrine, nutritional and metabolic diseases (E00-E89)
E00-E07Disorders of thyroid gland (E00-E07)
E02Subclinical iodine-deficiency hypothyroidism

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to E02:

chapterCH4
Endocrine, nutritional and metabolic diseases (E00-E89)
View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to E02. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

3 raw paths
Hypothyroidism (acquired)3 unique routes
due to
iodine-deficiency, acquired
subclinical→E02
iodine-deficiency (acquired)
subclinical→E02
subclinical, iodine-deficiency related→E02

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 643
Endocrine Disorders with MCC
DRG 644
Endocrine Disorders with CC
DRG 645
Endocrine Disorders without CC/MCC

Cross Reference

Find Procedures (ICD-10-PCS)

Find surgical and procedural codes related to Subclinical iodine-deficiency hypothyroidism.

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