ICD-10-CM
ICD-10 code for Adjustment disorder: F43.20
The CDC title for "Adjustment disorder" is F43.2 (Adjustment disorders), a header that is not billable. When nothing more specific is documented, the billable code is F43.20, Adjustment disorder, unspecified.
Source: CDC ICD-10-CM FY2027 order file dated June 16, 2026. Publisher page
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Codes under F43.2, then other CDC titles that name adjustment disorder
A header groups codes and is not billed. A billable code is one you can report.
- F43.2Adjustment disordersHeader
- F43.20Adjustment disorder, unspecifiedBillable
- F43.21Adjustment disorder with depressed moodBillable
- F43.22Adjustment disorder with anxietyBillable
- F43.23Adjustment disorder with mixed anxiety and depressed moodBillable
- F43.24Adjustment disorder with disturbance of conductBillable
- F43.25Adjustment disorder with mixed disturbance of emotions and conductBillable
- F43.29Adjustment disorder with other symptomsBillable
- F43Reaction to severe stress, and adjustment disordersHeader
Excludes2
Excludes2 means the other condition can be reported with this one when both are documented.
From F43.2. A note on a category applies to every code under it.
Related conditions
Related pages
- F43.20 code detailsNotes, nearby codes, CMS-HCC group
- Category F43.2Every code under it
- Chapter 5Mental, behavioral and neurodevelopmental disorders
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Adjustment disorder?
The CDC title for "Adjustment disorder" is F43.2 (Adjustment disorders), a header that is not billable. When nothing more specific is documented, the billable code is F43.20, Adjustment disorder, unspecified.
Is F43.20 billable?
Yes. F43.20 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What documentation notes apply to F43.20?
The CDC tabular list gives 1 Excludes2 note (may be coded together when both are documented) for F43.20 and the categories above it. They are listed on this page.
What chapter is F43.20 in?
Chapter 5. Mental, behavioral and neurodevelopmental disorders.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.