ICD10BillableValid for clinical use

ICD-10 Code F20.9: Schizophrenia, unspecified

F20.9 is a billable ICD-10 diagnosis code used to classify Schizophrenia, unspecified in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Mental, Behavioral and Neurodevelopmental disorders (F01-F99).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Mental, Behavioral and Neurodevelopmental disorders (F01-F99).

When is it used?

  • May be used when a clinician documents schizophrenia, unspecified in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
5Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
block
F20-F29Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders
category
F20Schizophrenia
currentF20

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Coverage-related procedures and services

CPT 90847high
FAMILY PSYCHOTHERAPY (CONJOINT PSYCHOTHERAPY) (WITH PATIENT PRESENT), 50 MINUTES
Source: CMS coverage guidance
CPT 90846high
FAMILY PSYCHOTHERAPY (WITHOUT THE PATIENT PRESENT), 50 MINUTES
Source: CMS coverage guidance
CPT 90853high
GROUP PSYCHOTHERAPY (OTHER THAN OF A MULTIPLE-FAMILY GROUP)
Source: CMS coverage guidance
CPT 90785high
INTERACTIVE COMPLEXITY (LIST SEPARATELY IN ADDITION TO THE CODE FOR PRIMARY PROCEDURE)
Source: CMS coverage guidance
CPT 90865high
NARCOSYNTHESIS FOR PSYCHIATRIC DIAGNOSTIC AND THERAPEUTIC PURPOSES (EG, SODIUM AMOBARBITAL (AMYTAL) INTERVIEW)
Source: CMS coverage guidance
CPT 96133high
NEUROPSYCHOLOGICAL TESTING EVALUATION SERVICES BY PHYSICIAN OR OTHER QUALIFIED HEALTH CARE PROFESSIONAL, INCLUDING INTEGRATION OF PATIENT DATA, INTERPRETATION OF STANDARDIZED TEST RESULTS AND CLINICAL DATA, CLINICAL DECISION MAKING, TREATMENT PLANNING AND REPORT, AND INTERACTIVE FEEDBACK TO THE PATIENT, FAMILY MEMBER(S) OR CAREGIVER(S), WHEN PERFORMED; EACH ADDITIONAL HOUR (LIST SEPARATELY IN ADDITION TO CODE FOR PRIMARY PROCEDURE)
Source: CMS coverage guidance

Coding guidelines

Compatibility

Legacy and official ICD code match exactly.
Legacy codes
F20.9

Common synonyms

Schizophrenia, unspecifiedSchizophrenia

Frequently asked questions

Code details

CodeF20.9
SystemICD10
Display nameSchizophrenia, unspecified
ChapterMental, Behavioral and Neurodevelopmental disorders (F01-F99)
BlockSchizophrenia, schizotypal, delusional, and other non-mood psychotic disorders

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Schizophrenia, schizophrenicSchizophrenia, schizophrenicSchizophrenia, schizophrenicSchizophrenia, schizophrenicSyndrome

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code F20.9 for Schizophrenia, unspecified | HealthAssure