F43.20 — Adjustment disorder, unspecified
Is F43.20 billable?
Yes, but F43.20 is an unspecified code. F43.20 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, F43.20 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting F43.20 — the more specific alternatives are listed below.
More specific alternatives
- F43.21Adjustment disorder with depressed mood
- F43.22Adjustment disorder with anxiety
- F43.23Adjustment disorder with mixed anxiety and depressed mood
- F43.24Adjustment disorder with disturbance of conduct
- F43.25Adjustment disorder with mixed disturbance of emotions and conduct
- F43.29Adjustment disorder with other symptoms
F43.20 at a glance
| Code | F43.20 |
|---|---|
| Description | Adjustment disorder, unspecified |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does F43.20 group to?
F43.20 sits in MDC 19 and helps define the logic of 1 MS-DRG (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 882Neuroses Except Depressivemedical
How is F43.20 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to F43.20. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Nostalgia
- Disorder › adjustment (of)
- Grief › reaction
Excludes2 — not included here — inherited from Chapter 5
The conditions below are not part of F43.20, but a patient may have both at the same time. When documentation supports it, F43.20 and the excluded code may both be reported.
- symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
Excludes2 — not included here — inherited from F43.2
The conditions below are not part of F43.20, but a patient may have both at the same time. When documentation supports it, F43.20 and the excluded code may both be reported.
- separation anxiety disorder of childhood (F93.0)
How long has F43.20 existed?
F43.20 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which conditions are coded to F43.20?
What other codes are in the F43.2 family? (6)
- F43.21Adjustment disorder with depressed mood
- F43.22Adjustment disorder with anxiety
- F43.23Adjustment disorder with mixed anxiety and depressed mood
- F43.24Adjustment disorder with disturbance of conduct
- F43.25Adjustment disorder with mixed disturbance of emotions and conduct
- F43.29Adjustment disorder with other symptoms