Adjustment Disorder ICD-10 Codes: F43.20 to F43.29 (FY2027)
Adjustment disorder is one of the most common diagnoses in outpatient therapy, and one of the most reviewed when treatment runs long. The ICD-10-CM codes split by the predominant symptoms, and the subtype in the note should match the code on the claim.
Short answer
The ICD-10-CM codes for adjustment disorders are F43.20 (unspecified), F43.21 (with depressed mood), F43.22 (with anxiety), F43.23 (with mixed anxiety and depressed mood), F43.24 (with disturbance of conduct), F43.25 (with mixed disturbance of emotions and conduct), and F43.29 (with other symptoms). F43.2 is a header and isn't billable.
Adjustment disorder codes
| Code | ICD-10-CM title |
|---|---|
| F43.20 | Adjustment disorder, unspecified (unspecified) |
| F43.21 | Adjustment disorder with depressed mood |
| F43.22 | Adjustment disorder with anxiety |
| F43.23 | Adjustment disorder with mixed anxiety and depressed mood |
| F43.24 | Adjustment disorder with disturbance of conduct |
| F43.25 | Adjustment disorder with mixed disturbance of emotions and conduct |
| F43.29 | Adjustment disorder with other symptoms |
Billing notes
- Match the subtype to the note. If the assessment describes depressed mood and anxiety, F43.23 fits better than F43.20.
- Watch the duration. DSM-5-TR expects adjustment disorder symptoms to resolve within six months after the stressor and its consequences end. Long treatment under F43.2x without an updated diagnosis invites a medical necessity review.
- Re-diagnose when the picture changes. If symptoms now meet criteria for MDD, an anxiety disorder, or PTSD, update the code.
- Use the full code. F43.2 alone comes back as an invalid diagnosis.
More codes: behavioral health ICD-10 codes.
Code titles from the FY2027 ICD-10-CM code set (CDC/NCHS), effective October 1, 2026 through September 30, 2027. Diagnosis is a clinical decision; this page covers how codes behave on claims, not how to diagnose.
Frequently asked questions
What is the ICD-10 code for adjustment disorder with mixed anxiety and depressed mood?
F43.23.
What is the ICD-10 code for adjustment disorder with anxiety?
F43.22.
What is the ICD-10 code for adjustment disorder, unspecified?
F43.20. Payers may expect a subtype once the assessment documents the predominant symptoms.
Diagnoses that keep pace with treatment.
Stable flags long courses of treatment under codes that payers review and checks every diagnosis before the claim goes out.
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