E20.812 — Autoimmune hypoparathyroidism
Is E20.812 billable?
Yes — E20.812 is billable for FY2027. E20.812 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. E20.812 may be submitted for encounters from October 1, 2026 through September 30, 2027.
E20.812 at a glance
| Code | E20.812 |
|---|---|
| Description | Autoimmune hypoparathyroidism |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does E20.812 group to?
E20.812 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 E20.812 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to E20.812. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Hypoparathyroidism › autoimmune
Code first
The underlying condition below must be sequenced before E20.812. E20.812 describes a manifestation and cannot be the principal or first-listed diagnosis.
Excludes1 — never code together — inherited from Chapter 4
The conditions below can never be reported together with E20.812 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 E20.812 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 E20
The conditions below can never be reported together with E20.812 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 E20.812 existed?
E20.812 first appears in FY2024.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.