F41.1 ICD-10-CM Code: Generalized anxiety disorder
HCC Buddy Code Card
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FY 2026 Apr update / Mental, Behavioral and Neurodevelopmental disorders (F01-F99) / Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40-F48)
F41.1
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceGeneralized anxiety disorder
Generalized anxiety disorder is a condition where a person experiences persistent, excessive worry about various aspects of daily life for at least six months.
Buddy Insight
Generalized anxiety disorder (GAD) is characterized by excessive, persistent worry about multiple aspects of life that is difficult to control, lasting at least 6 months.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
N/A—
Not mapped
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
MappedHCC 133
RAF 0.035
Code Book Path
Inclusion Terms
Official- Anxiety neurosis
- Anxiety reaction
- Anxiety state
- Overanxious disorder
Excludes 2
Official- neurasthenia (F48.8)
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for F41.1 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for F41.1 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for F41.1 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for F41.1 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for F41.1 in this effective period.
Buddy Documentation Tip
MEAT Support
Audit Caution
Common Mistakes
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
Is F41.1 an HCC code?
F41.1 is not in the CMS-HCC V28 or V24 community payment model, but it does map to Personality Disorders, Anxiety, and Other Specified Mental Disorders under the Part D RxHCC model.
- Code
- F41.1
- Description
- Generalized anxiety disorder
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF
- —
- Billable
- Yes
- Payment year
- 2026
HCC Category Mapping
Each model's RAF is its CMS base weight for that model's standard population, so weights are not directly comparable across models: CMS-HCC V28 and V24 use Community, Non-Dual, Aged; ESRD uses the dialysis continuing-enrollee model; RxHCC is the Part D continuing-enrollee, non-low-income, aged weight (a larger scale than CMS-HCC). ACA/HHS has no single weight — it varies by metal level. Actual per-patient RAF contribution depends on member segment, interactions, and the model year used by the payer. V28 is the CMS-HCC model phased in over payment years 2024–2026; V24 remains in use during the transition and for historical data.
Work F41.1 in the Code Book — tabular path, V28 RAF, and MEAT checklist →
MEAT Criteria for F41.1
For F41.1 to count as a valid HCC diagnosis in a given encounter, the provider's documentation must show MEAT: Monitor, Evaluate, Assess, or Treat. A diagnosis from a prior year does not carry forward automatically, it has to be re-documented and supported each calendar year.
- MMonitor: signs, symptoms, disease progression, or lab trending documented in the note
- EEvaluate: test results, medication response, or physical findings reviewed by the provider
- AAssess: explicit mention in the assessment or plan with acknowledgment of status
- TTreat: medication, referral, procedure, therapy, or counseling tied to the diagnosis
Only one of M/E/A/T is required to support the code, but the documentation must be specific enough to show that the provider actually addressed F41.1 during that encounter, not just copy-forwarded from a problem list.
Coder workflow notes
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What This Code Means
F41.1 is the ICD-10-CM diagnosis code for generalized anxiety disorder. Generalized anxiety disorder is a condition where a person experiences persistent, excessive worry about various aspects of daily life for at least six months. F41.1 sits in the ICD-10-CM chapter for mental, behavioral and neurodevelopmental disorders (f01-f99), within the section covering anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (f40-f48).
F41.1 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
This code does not map to a CMS-HCC V28 payment category. Capture depends on documentation that supports the diagnosis; verify the HCC assignment against the current CMS mapping for the applicable payment year. Coders reviewing F41.1 should check whether additional documentation would support a more specific child code in the same hierarchy that does map to a payment HCC, capturing the correct specificity is the highest-impact RAF improvement available within accurate coding.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for F41.1 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Ensure documentation specifies the duration of anxiety symptoms (minimum 6 months required)
- •Note whether the anxiety is affecting work, social, or personal functioning
Clinical Significance
Generalized anxiety disorder (GAD) is characterized by excessive, persistent worry about multiple aspects of life that is difficult to control, lasting at least 6 months. It is associated with physical symptoms including muscle tension, sleep disturbance, and fatigue. GAD frequently co-occurs with depression and other anxiety disorders. It does not map to any HCC and is not risk-adjusting.
Documentation Requirements
- ✓Excessive anxiety and worry about multiple events or activities for at least 6 months
- ✓Difficulty controlling the worry
- ✓At least three associated symptoms: restlessness, fatigue, difficulty concentrating, irritability, muscle tension, sleep disturbance
- ✓Functional impairment in social, occupational, or other areas
- ✓Anxiety not better explained by another mental disorder or medical condition
- ✓Current treatment plan including therapy and/or medications
Excludes 2, Not included here, may code separately
- neurasthenia (F48.8)
Commonly Confused Codes
- •F41.0 (Panic disorder): Panic disorder involves discrete panic attacks; GAD involves chronic pervasive worry
- •F40.10 (Social phobia, unspecified): Social phobia is situation-specific; GAD involves worry across multiple domains
- •F32.1 (Major depressive disorder, single episode, moderate): Depression and GAD frequently co-occur but are distinct diagnoses; both may be coded if both are documented
- •F43.22 (Adjustment disorder with anxiety): Adjustment disorder is reactive to an identifiable stressor and time-limited; GAD is chronic