E31.0 — Autoimmune polyglandular failure
Is E31.0 billable?
Yes — E31.0 is billable for FY2027. E31.0 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. E31.0 may be submitted for encounters from October 1, 2026 through September 30, 2027.
E31.0 at a glance
| Code | E31.0 |
|---|---|
| Description | Autoimmune polyglandular failure |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does E31.0 group to?
E31.0 sits in MDC 10 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 643Endocrine Disorders with MCCmedical
- 644Endocrine Disorders with CCmedical
- 645Endocrine Disorders without CC/MCCmedical
How is E31.0 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to E31.0. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Schmidt's syndrome (polyglandular, autoimmune)
- Failure, failed › polyglandular, autoimmune
- Insufficiency, insufficient › progressive pluriglandular
- Polyglandular › deficiency
- Syndrome › autoimmune polyglandular
- Syndrome › thyroid-adrenocortical insufficiency
- Atrophy, atrophic › pluriglandular › autoimmune (of)
- Deficiency, deficient › polyglandular › autoimmune
- Syndrome › pluriglandular › autoimmune
- Syndrome › polyglandular › autoimmune
Inclusion terms
Alternative wording in documentation that is classified to E31.0.
- Schmidt's syndrome
Excludes1 — never code together — inherited from Chapter 4
The conditions below can never be reported together with E31.0 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- transitory endocrine and metabolic disorders specific to newborn (P70-P74)
Excludes1 — never code together — inherited from E20-E35
The conditions below can never be reported together with E31.0 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes1 — never code together — inherited from E31
The conditions below can never be reported together with E31.0 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
How long has E31.0 existed?
E31.0 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.