October 1 update. Our PDGM and ICD-10 tools now use the FY2027 code set: 190 codes added, 30 deleted, and no existing code changed clinical group.

See what changed

ICD-10 · PDGM grouping

E00-E07 — Disorders of thyroid gland

Every ICD-10-CM code in this range and the PDGM clinical group CMS assigns to it, read from the CMS grouper crosswalk v07.2.26.

ICD-10-CM FY2027 · CMS grouper v07.2.26

Codes in range

48

No clinical group

1

A period cannot be grouped from these.

Barred as primary

0

CMS rejects these in the primary position.

Where these codes group

46 of the 48 codes in E00-E07 group to MMTA - Endocrine, but the range is not uniform — it spreads across 2 clinical groups. A further 1 are assigned no clinical group at all, which means a 30-day period cannot be grouped from them.

Code families in E00-E07

One page per three-character family: every code in it, whether it can lead a claim, its clinical group and comorbidity subgroup.

Every code in E00-E07

Descriptions are CMS’s own, abbreviated as CMS abbreviates them.

CodeDescriptionClinical groupPrimary position
E000Congenital iodine-deficiency syndrome, neurological typeACan lead a claim
E001Congenital iodine-deficiency syndrome, myxedematous typeICan lead a claim
E002Congenital iodine-deficiency syndrome, mixed typeICan lead a claim
E009Congenital iodine-deficiency syndrome, unspecifiedICan lead a claim
E010Iodine-deficiency related diffuse (endemic) goiterICan lead a claim
E011Iodine-deficiency related multinodular (endemic) goiterICan lead a claim
E012Iodine-deficiency related (endemic) goiter, unspecifiedICan lead a claim
E018Oth iodine-deficiency related thyroid disord and allied condICan lead a claim
E02Subclinical iodine-deficiency hypothyroidismICan lead a claim
E030Congenital hypothyroidism with diffuse goiterICan lead a claim
E031Congenital hypothyroidism without goiterICan lead a claim
E032Hypothyroidism due to meds and oth exogenous substancesICan lead a claim, code first applies
E033Postinfectious hypothyroidismICan lead a claim
E034Atrophy of thyroid (acquired)ICan lead a claim
E035Myxedema comaICan lead a claim
E038Other specified hypothyroidismICan lead a claim
E039Hypothyroidism, unspecifiedICan lead a claim
E040Nontoxic diffuse goiterICan lead a claim
E041Nontoxic single thyroid noduleICan lead a claim
E042Nontoxic multinodular goiterICan lead a claim
E048Other specified nontoxic goiterICan lead a claim
E049Nontoxic goiter, unspecifiedICan lead a claim
E0500Thyrotoxicosis w diffuse goiter w/o thyrotoxic crisisICan lead a claim
E0501Thyrotoxicosis w diffuse goiter w thyrotoxic crisis or stormICan lead a claim
E0510Thyrotxcosis w toxic sing thyroid nodule w/o thyrotxc crisisICan lead a claim
E0511Thyrotxcosis w toxic single thyroid nodule w thyrotxc crisisICan lead a claim
E0520Thyrotxcosis w toxic multinod goiter w/o thyrotoxic crisisICan lead a claim
E0521Thyrotxcosis w toxic multinodular goiter w thyrotoxic crisisICan lead a claim
E0530Thyrotxcosis from ectopic thyroid tissue w/o thyrotxc crisisICan lead a claim
E0531Thyrotxcosis from ectopic thyroid tissue w thyrotoxic crisisICan lead a claim
E0540Thyrotoxicosis factitia without thyrotoxic crisis or stormICan lead a claim
E0541Thyrotoxicosis factitia with thyrotoxic crisis or stormICan lead a claim
E0580Other thyrotoxicosis without thyrotoxic crisis or stormICan lead a claim
E0581Other thyrotoxicosis with thyrotoxic crisis or stormICan lead a claim
E0590Thyrotoxicosis, unsp without thyrotoxic crisis or stormICan lead a claim
E0591Thyrotoxicosis, unspecified with thyrotoxic crisis or stormICan lead a claim
E060Acute thyroiditisICan lead a claim
E061Subacute thyroiditisICan lead a claim
E062Chronic thyroiditis with transient thyrotoxicosisICan lead a claim
E063Autoimmune thyroiditisICan lead a claim
E064Drug-induced thyroiditisICan lead a claim
E065Other chronic thyroiditisICan lead a claim
E069Thyroiditis, unspecifiedICan lead a claim
E070Hypersecretion of calcitoninICan lead a claim
E071Dyshormogenetic goiterICan lead a claim
E0781Sick-euthyroid syndromeICan lead a claim
E0789Other specified disorders of thyroidICan lead a claim
E079Disorder of thyroid, unspecifiedNoneCannot lead a claim

Source: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.

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