ICD-10 F20
Non-Billable HeaderSchizophrenia
About ICD-10-CM F20
ICD-10-CM code F20 represents Schizophrenia. This is a non-billable header code in the Mental, Behavioral, and Neurodevelopmental chapter (block F20). The 2026 edition of ICD-10-CM F20 became effective on October 1, 2025. Non-billable codes cannot be used as a primary or secondary diagnosis on a claim, use a more specific child code instead.
Type 1 Excludes
Pure excludes, these codes can never be coded together with F20. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- brief psychotic disorder (F23)
- cyclic schizophrenia (F25.0)
- mood [affective] disorders with psychotic symptoms (F30.2, F31.2, F31.5, F31.64, F32.3, F33.3)
- schizoaffective disorder (F25.-)
- schizophrenic reaction NOS (F23)
Type 2 Excludes
Not included here, the excluded code is not part of F20, but a patient may have both conditions at the same time. Both codes may be coded together when applicable.
- schizophrenic reaction in:
- alcoholism (F10.15-, F10.25-, F10.95-)
- brain disease (F06.2)
- epilepsy (F06.2)
- psychoactive drug use (F11-F19 with .15. .25, .95)
- schizotypal disorder (F21)
Use Additional Code
When coding F20, also report these additional codes when applicable.
- code, if applicable, to identify:
- other specified cognitive deficit (R41.84-)
Medicare LCD Coverage for F20
Local Coverage Determinations (LCDs) from CMS MACs that list F20 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing F20.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but F20 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with F20
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Codes Adjacent To F20
Other codes in section F20-F29 (Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders).
ICD-10 F20, Billing FAQ
Is ICD-10 code F20 billable? +
No, F20 is a non-billable header code. Use a more specific child code from block F20 when submitting claims.
What codes are Type 1 Excludes for F20? +
Type 1 Excludes (never code together with F20): brief psychotic disorder (F23); cyclic schizophrenia (F25.0); mood [affective] disorders with psychotic symptoms (F30.2, F31.2, F31.5, F31.64, F32.3, F33.3)
What codes are Type 2 Excludes for F20? +
Type 2 Excludes (may be coded together when both conditions exist): schizophrenic reaction in:; alcoholism (F10.15-, F10.25-, F10.95-); brain disease (F06.2)
Get the full PayerReady toolkit
Free access to CPT/ICD-10 lookup, denial appeals, fee comparator, and claim auditing with credentialing enrollment.
Start free →Run this code through our claim audit tool
Check NCCI bundling, MUE limits, and modifier logic before submission.
Try the auditor →Did this page help?
Quick signal so we know what to improve.
If you want a code reference page that doesn't exist yet, email coding@payerready.com.
Tell us what's missing or wrong: coding@payerready.com. We respond within 5 business days.
Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
Powered by 11K CPT · 98K ICD-10 · 860K MPFS rates · 4.5M NCCI edits · 9.5M NPIs. Our data methodology · About our coding team