ICD-10 Code E24.4: Alcohol-induced pseudo-Cushing’s syndrome

Key Takeaways

ICD-10 Code E24.4 is the billable, specific code for alcohol-induced pseudo-Cushing’s syndrome, valid for dates of service on or after October 1, 2015.

E24.4 sits within the E24 Cushing’s syndrome category (block E20-E35), which is non-billable: always code to the specific child code.

When alcohol use disorder is documented alongside E24.4, coders must also assign the appropriate F10.x code per ICD-10-CM dual-coding guidelines.

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ICD-10 Code E24.4 is the specific, billable ICD-10-CM diagnosis code for alcohol-induced pseudo-Cushing’s syndrome. It is valid for encounters with dates of service on or after October 1, 2015, and remains an active, valid code through fiscal year 2026.

This reference guide covers the code’s definition, clinical differentiation from true Cushing’s syndrome, the full E24 family, documentation requirements, and dual-coding guidance for alcohol use disorder.

What is alcohol-induced pseudo-Cushing’s syndrome?

Pseudo-Cushing’s syndrome describes a clinical state in which a patient presents with signs and symptoms that closely resemble Cushing’s syndrome (hypercortisolism). These include central obesity, moon facies, hypertension, glucose intolerance, and elevated urinary free cortisol.

The distinguishing feature is that these signs occur without an underlying pituitary tumor, adrenal adenoma, or ectopic ACTH-secreting neoplasm.

In E24.4 specifically, the trigger is chronic alcohol use. Alcohol disrupts the normal feedback regulation of the hypothalamic-pituitary-adrenal (HPA) axis, leading to excess cortisol production that resolves with abstinence. This is a critical clinical distinction: the hypercortisolism is reversible.

According to the Centers for Medicare and Medicaid Services (CMS), ICD-10-CM E24.4 falls under chapter E00-E89 (Endocrine, nutritional and metabolic diseases), block E20-E35 (Disorders of other endocrine glands), and the parent category E24 (Cushing’s syndrome). The parent E24 code is non-billable; E24.4 is the specific child code used for alcohol-induced cases.

Key synonyms and inclusion terms

Coders may encounter this condition documented under several interchangeable terms. All of the following map to E24.4:

• Alcohol-induced pseudo-Cushing syndrome
• Pseudo-Cushing’s syndrome (when alcohol etiology is specified)
• Alcohol-related hypercortisolism
• Alcohol-induced Cushing-like state

If the documentation reads “pseudo-Cushing’s syndrome” without specifying a cause, coders should query the provider before assigning E24.4. The unspecified route is E24.9, not E24.4, unless alcohol etiology is confirmed in the clinical record. The same principle governs other specific endocrine codes, such as ICD-10 Code E02 for subclinical hypothyroidism: specificity requires documented clinical confirmation.

E24.4 vs true Cushing’s syndrome: clinical differentiation for coders

Understanding the clinical difference between E24.4 and other E24 codes matters because payers review diagnosis specificity at the claim level. Assigning E24.9 (unspecified) when the record clearly documents alcohol etiology is a coding accuracy failure, and coding E24.0 (pituitary-dependent) when the patient’s cortisol elevation is alcohol-driven misrepresents the clinical picture entirely.

The table below shows the key differentiators that coders can use to verify which E24 code applies:

Coders should look for the physician’s workup notes, specifically the dexamethasone suppression test result and alcohol use history, before selecting a code from the E24 group. This is where disciplined clinical documentation for ICD-10 coding becomes essential: the code must reflect what is documented, not what the coder suspects based on patient demographics.

The E24 Cushing’s syndrome code family

E24 is the non-billable parent category for all Cushing’s syndrome codes. Submitting E24 as a standalone claim code will result in rejection. Coders must always assign the specific child code that matches the documented etiology. Here is the complete E24 family:

For related endocrine diagnostic code guidance such as D35.7 for benign endocrine gland neoplasms, specificity selection follows the same principle: when the provider documents a specific etiology, that etiology governs the code choice. E24.9 is reserved only for encounters where the type of Cushing’s syndrome has not yet been established.

ICD-10 Code E24.4 coding guidelines: billable status and dual coding

ICD-10 Code E24.4 is confirmed billable and specific. It was added to ICD-10-CM with an effective date of October 1, 2015, and it has remained an active, valid code through fiscal year 2026. No prior authorization requirement exists at the code level; coverage decisions are payer-specific.

Dual coding with F10.x (alcohol use disorder)

This is the most common coding omission in E24.4 claims. When the clinical record documents alcohol use disorder alongside the pseudo-Cushing’s syndrome presentation, ICD-10-CM Official Guidelines for Coding and Reporting require that the appropriate F10 alcohol use disorder code also be assigned.

This follows the etiology/manifestation convention: the underlying condition (alcohol use disorder) and its manifestation (pseudo-Cushing’s syndrome) are both reported.

The correct F10.x code depends on the severity documented by the physician:

• F10.10: Alcohol use disorder, mild, uncomplicated
• F10.20: Alcohol use disorder, moderate or severe, uncomplicated
• F10.21: Alcohol use disorder, moderate or severe, in remission
• F10.29: Alcohol dependence with unspecified alcohol-induced disorder

Coders should never assign an F10.x code that exceeds what the physician documented. Query the provider if the record is ambiguous about severity or the presence of an active use disorder versus a history of use. This query process is part of strong compliance management software workflows in practices handling complex endocrine cases.

Excludes notes for E24.4

The E24 category carries an Excludes1 note for congenital adrenal hyperplasia (E25.0). This means E25.0 cannot be assigned in the same encounter as any E24 code. Clinicians and coders should be aware of this exclusion when patients present with overlapping adrenal pathology.

There are no Excludes2 notes specific to E24.4 that would prevent pairing with F10.x codes, confirming that the dual-coding approach described above is both appropriate and required when both conditions are documented.

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Documentation requirements for accurate E24.4 coding

Accurate E24.4 assignment depends on four elements being present in the clinical record. Missing any one of them creates coding ambiguity and risks a query or denial.

• Confirmed alcohol use history: The physician must document that the patient has a history of chronic or heavy alcohol consumption. “Social drinking” is not sufficient to support E24.4.
• Cushing’s-like clinical features: At least some of the classic features (central weight gain, hypertension, glucose intolerance, moon facies, purple striae) must be documented by examination or clinical note.
• Biochemical evidence of hypercortisolism: An elevated urinary free cortisol, late-night salivary cortisol, or abnormal dexamethasone suppression test result should be documented. The specific values or test interpretations must appear in the record.
• Exclusion of other causes: The physician must document that pituitary, adrenal, or ectopic sources were considered and ruled out (or that workup is pending with alcohol as the presumed cause).

Practices that use patient intake and assessment forms can build structured templates that prompt providers to record each of these four elements at the point of care, reducing the need for retrospective queries.

Investing in clinical documentation software, increasingly powered by AI clinical documentation, helps capture these details consistently across every encounter.

For functional medicine practices and integrative practices that evaluate complex endocrine presentations, this kind of structured documentation protocol is particularly important because the patient population may present with multiple overlapping metabolic conditions that each require their own code.

E24.4 vs E24.9: choosing the right code

E24.9 (Cushing’s syndrome, unspecified) is the fallback code. It should not be used when the clinical record establishes alcohol as the cause. The difference matters at audit: using E24.9 when E24.4 is clinically supported signals undercoding, which can trigger compliance review in high-volume endocrine practices.

Assign E24.9 only when the physician has documented Cushing’s syndrome features but has not yet identified the etiology, or when the record clearly does not support any of the specific E24 child codes. If the next encounter establishes an alcohol cause, update the code at that encounter.

Coding workflow: integrating E24.4 into your practice management system

ICD-10 Code E24.4 is a low-volume code in most practices, but endocrinology, metabolic health EMR software users, and addiction medicine practices that also report the H2036 alcohol and drug treatment program code may encounter it with some regularity. Embedding it correctly into the clinical workflow prevents recurring coding errors.

Steps for accurate E24.4 claim submission

1. Confirm documentation completeness before coding: all four elements (alcohol history, clinical features, biochemical evidence, exclusion of other causes) must be present or a provider query must be initiated.
2. Assign E24.4 as the principal diagnosis when the pseudo-Cushing’s syndrome is the reason for the encounter, or as a secondary diagnosis if the encounter is primarily for alcohol use disorder management.
3. Add the appropriate F10.x code when alcohol use disorder is documented. Sequencing depends on the reason for the encounter: if the focus is the endocrine manifestation, E24.4 leads; if the focus is addiction management, the F10.x code leads.
4. Verify payer-specific coverage using the CMS ICD-10 code lookup or your clearinghouse’s eligibility check. Not all payers cover endocrine workups under the same LCD policies.
5. Review the claim for the Excludes1 conflict: confirm no E25.x codes are present in the same claim set.

Practices using claims management software can configure rule sets that flag E24.4 claims missing an F10.x pairing when alcohol use disorder is documented in the patient record, reducing the chance of this common omission reaching payers. Strong patient record management that keeps clinical notes and billing codes linked in the same view also speeds up this review step significantly.

E24.4 code history and annual updates

E24.4 has been a stable, active code since its introduction on October 1, 2015. It has not been subject to revision, deletion, or renaming in any subsequent ICD-10-CM update through fiscal year 2026. Coders working from older reference documents should verify currency using the CDC/NCHS ICD-10-CM web tool, which provides the official annual tabular list and code validity confirmation.

The AAPC Codify ICD-10-CM lookup is also useful for verifying crosswalk information and checking whether any new instructional notes have been added to the E24 category in recent fiscal year updates. Both resources should be consulted at the start of each fiscal year (October 1) when new ICD-10-CM editions take effect.

For integrative medicine practices and multi-specialty practices that periodically add endocrine coding to their service mix, an annual code review process ensures that E24.4 and related metabolic and nutritional codes, such as E65 for localized adiposity and E42 for marasmic kwashiorkor, remain current in the practice management system’s diagnosis code library.

Conclusion

ICD-10 Code E24.4 requires precise documentation to assign correctly: confirmed alcohol etiology, biochemical evidence of hypercortisolism, and explicit exclusion of pituitary or adrenal causes. The most common errors (defaulting to E24.9, omitting the F10.x dual code, and confusing E24.4 with E24.0) are all preventable through structured documentation protocols and claim-level rules.

Pabau’s integrated patient records and claims management tools help endocrine and metabolic health practices build coding accuracy into the clinical workflow from the first encounter. To see how Pabau supports complex ICD-10 billing in specialty practices, book a demo.

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