Based on the thorough clinical picture presented, here are the 5 most appropriate diagnoses for this patient, ranked by priority:
1. Major Depressive Disorder (MDD) - Primary Diagnosis
Most fitting diagnosis. The patient meets the DSM-5 criteria for MDD with multiple cardinal features:
| DSM-5 Symptom | Present in Patient |
|---|
| Depressed mood | Yes ("felt depressed") |
| Sleep disturbance (insomnia) | Yes - only ~2 hours/night |
| Fatigue / loss of energy | Yes - "felt tired most of the time" |
| Feelings of worthlessness | Yes - "felt useless" |
| Diminished appetite | Yes - poor appetite |
| Suicidal ideation / self-harm thoughts | Yes - explicitly stated |
| Psychomotor / concentration issues | Implied by persistent worry |
Per Kaplan & Sadock's Synopsis of Psychiatry, MDD requires 5+ of these symptoms for at least 2 weeks, with significant functional impairment. This patient has been symptomatic for 2 months and cannot work or sleep - criteria are clearly met.
Specifier: MDD with anxious distress (persistent worry about surgery and finances), moderate-to-severe severity given suicidal ideation.
2. Generalized Anxiety Disorder (GAD)
The patient presents with persistent, uncontrollable worry about multiple domains - upcoming surgery, financial insecurity, ability to care for his children - lasting at least 2 months. He has:
- Difficulty sleeping due to worrying
- Fatigue
- Functional impairment (unable to work)
GAD can co-occur with MDD (high comorbidity), and the worry preceded the depressive symptoms here. This may also be conceptualized as MDD with the "anxious distress" specifier, but GAD as a comorbid or primary diagnosis is highly plausible.
3. Adjustment Disorder with Mixed Anxiety and Depressed Mood
Per DSM-5 (referenced in Kaplan & Sadock's Comprehensive Textbook of Psychiatry), Adjustment Disorder is characterized by:
- Emotional or behavioral symptoms in response to an identifiable stressor
- Symptoms beyond what is expected from the stressor
- Significant functional impairment
The stressor here is clear: the diagnosis of a forearm fracture requiring surgery, financial strain, and inability to work. The onset (2 months PTC) closely follows the revelation that surgery was needed. If the MDD criteria are fully met, MDD takes precedence - but Adjustment Disorder is an important differential, especially if symptom severity is re-assessed as not meeting full MDD threshold.
4. Insomnia Disorder (Comorbid / Secondary)
The patient has a severe and discrete sleep complaint: sleeping only ~2 hours per night, with the cause attributed to worry and rumination. As noted in Goldman-Cecil Medicine, insomnia comorbid with a psychiatric disorder (anxiety, depression) is a distinct and clinically relevant diagnosis. This warrants targeted treatment (sleep hygiene, CBT-I, or pharmacotherapy) alongside treatment of the primary psychiatric condition.
5. Somatic Symptom Disorder / Pain Disorder with Psychological Factors (Differential)
The patient sustained trauma to the left forearm, but the fracture was not visible/detected for 7 months. His pain - which worsened over time and now limits function - has both a clear organic cause (non-union or delayed-recognized fracture) and a significant psychological overlay (distress, work disability, anticipatory anxiety about surgery). Per Swanson's Family Medicine Review, chronic pain disorder with psychological factors involves pain as the central complaint that causes distress and impairment, with psychological factors playing a significant role. This should be evaluated alongside the orthopedic management.
Summary Table
| # | Diagnosis | DSM-5 Code | Key Features |
|---|
| 1 | Major Depressive Disorder | F32.1-F32.2 | Depressed mood, insomnia, anhedonia, worthlessness, suicidal ideation, 2 months |
| 2 | Generalized Anxiety Disorder | F41.1 | Uncontrollable worry (surgery, finances, children), fatigue, sleep disturbance |
| 3 | Adjustment Disorder w/ Mixed Anxiety & Depressed Mood | F43.23 | Clear identifiable stressor (injury + surgery), onset temporally linked |
| 4 | Insomnia Disorder (Comorbid) | F51.01 | 2 hrs/night, worry-driven, severe functional impact |
| 5 | Somatic Symptom Disorder / Pain Disorder | F45.1 | Chronic forearm pain with psychological amplification and functional impairment |
Clinical note: Suicidal ideation is present and must be assessed urgently for intent, plan, and means. Safety planning and close follow-up are indicated regardless of the final primary diagnosis. - Kaplan & Sadock's Synopsis of Psychiatry
