ICD-10 · PDGM grouping
E26 Hyperaldosteronism
All 7 codes in the E26 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.
Codes in family
7
Can lead a claim
6
Cannot lead a claim
1
What CMS assigns to E26
6 of the 7 codes group to MMTA - Endocrine; 1 is assigned no clinical group. None of the 7 is assigned a comorbidity subgroup. 6 of the 7 can lead a claim.
Every code in E26
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| E26.0 Primary hyperaldosteronism | ||||
| E26.01 | Conn's syndrome | Can lead a claim | I | None |
| E26.02 | Glucocorticoid-remediable aldosteronism | Can lead a claim | I | None |
| E26.09 | Other primary hyperaldosteronism | Can lead a claim | I | None |
| E26.1 | Secondary hyperaldosteronism | Can lead a claim | I | None |
| E26.8 Other hyperaldosteronism | ||||
| E26.81 | Bartter's syndrome | Can lead a claim | I | None |
| E26.89 | Other hyperaldosteronism | Can lead a claim | I | None |
| E26.9 | Hyperaldosteronism, unspecified | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. 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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