E27.0 — Other adrenocortical overactivity
Is E27.0 billable?
Yes — E27.0 is billable for FY2027. E27.0 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. E27.0 may be submitted for encounters from October 1, 2026 through September 30, 2027.
E27.0 at a glance
| Code | E27.0 |
|---|---|
| Description | Other adrenocortical overactivity |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does E27.0 group to?
E27.0 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
As a secondary diagnosis, E27.0 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is E27.0 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to E27.0. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Adrenarche, premature
- Schroeder's syndrome (endocrine hypertensive)
- Slocumb's syndrome
- Dysadrenocortism › hyperfunction
- Hyperadrenocorticism › not associated with Cushing's syndrome
- Hyperfunction › adrenal cortex, not associated with Cushing's syndrome
- Hypersecretion › ACTH
- Overactive › adrenal cortex NEC
- Overproduction › ACTH
- Premature › adrenarche
- Syndrome › endocrine-hypertensive
- Syndrome › Schroeder's
Excludes1 — never code together
The conditions below can never be reported together with E27.0 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- Cushing's syndrome (E24.-)
Inclusion terms
Alternative wording in documentation that is classified to E27.0.
- Overproduction of ACTH, not associated with Cushing's disease
- Premature adrenarche
Excludes1 — never code together — inherited from Chapter 4
The conditions below can never be reported together with E27.0 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 E27.0 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 E27.0 existed?
E27.0 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.
Which codes are confused with E27.0?
ICD-10-CM declares these codes mutually exclusive with E27.0 — exactly one of each pair can be correct for a given encounter.
Which conditions are coded to E27.0?
What other codes are in the E27 family? (7)
- E27.1Primary adrenocortical insufficiency
- E27.2Addisonian crisis
- E27.3Drug-induced adrenocortical insufficiency
- E27.4Other and unspecified adrenocortical insufficiencynot billable
- E27.5Adrenomedullary hyperfunction
- E27.8Other specified disorders of adrenal gland
- E27.9Disorder of adrenal gland, unspecified