2027 ICD-10-CM Diagnosis Code F41.1Generalized anxiety disorder
ICD-10-CM Codes›F01–F99›F40-F48›F41
- Billable — Valid for Submission
- Chronic Condition
F41.1 is a billable ICD-10-CM diagnosis code for generalized anxiety disorder. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 880. Coders also document this condition as anxiety attack. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Anxiety and fear-related disorders.
F41.1 does not risk-adjust for Medicare Advantage under the CMS-HCC V28 model. It still risk-adjusts in the RxHCC Part D (V08) category 133 for payment year 2027.
Code Identity
Code Classification
Medicare Risk Adjustment (HCC)Billing
F41.1 does not risk-adjust for Medicare Advantage under the CMS-HCC V28 model, but it maps to payment categories in the other CMS models shown below.
Source: CMS Payment Year 2027 risk adjustment mappings and model software. Weights are relative factors, not dollar amounts; a beneficiary's total RAF also includes demographics and interactions. Browse all CMS-HCC categories.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Anxiety attack
- Anxiety state
- Apprehension
- Generalized anxiety disorder
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to F41.1: its own notes plus those printed at F41 and Chapter 5. A note printed at a category, block or chapter applies to every code under it.
Includes
Further defines, or gives examples of, the content of the category.
- disorders of psychological development
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Anxiety neurosis
- Anxiety reaction
- Anxiety state
- Overanxious disorder
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- neurasthenia (F48.8)
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name F41.1, its category, or a range that includes it.
Excludes2 3
These codes carry an Excludes2 note naming F41.1: its condition is not part of those codes, and both may be reported when the patient has both.
- F06.4 Anxiety disorder due to known physiological conditionanxiety disorders, not due to known physiological condition or unspecified (F40.-, F41.-) names F41.-, which includes this code
- F90 Attention-deficit hyperactivity disordersanxiety disorders (F40.-, F41.-) names F41.-, which includes this code
- F93.0 Separation anxiety disorder of childhood
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Apprehension state F41.1
Disorder (of) See Also: Disease;
generalized F41.1
overanxious F41.1
Psychoneurosis, psychoneurotic See Also: Neurosis;
anxiety (state) F41.1
anxiety (neurotic) F41.1
apprehension F41.1
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Generalized Anxiety Disorder
uncontrolled anxiety or excessive worry that exceeds the realistic scope of life situations and endures for at least a month or longer.
Patient EducationClinical
Anxiety
Anxiety is a feeling of fear, dread, and uneasiness. It might cause you to sweat, feel restless and tense, and have a rapid heartbeat. It can be a normal reaction to stress. For example, you might feel anxious when faced with a difficult problem at work, before taking a test, or before making an important decision.
The full article covers:
- What is anxiety?
- What are anxiety disorders?
- What are the types of anxiety disorders?
- What causes anxiety disorders?
- Who is at risk for anxiety disorders?
- What are the symptoms of anxiety disorders?
- How are anxiety disorders diagnosed?
- What are the treatments for anxiety disorders?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert F41.1 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About F41.1Overview
What is the ICD-10 code for generalized anxiety disorder?
The ICD-10-CM code for generalized anxiety disorder is F41.1 (sometimes written as F411). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is F41.1 (Other anxiety disorders) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report generalized anxiety disorder on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does F41.1 group to?
When generalized anxiety disorder is the principal diagnosis on an inpatient stay, it groups to MS-DRG 880 (acute Adjustment Reaction and Psychosocial Dysfunction), which carries a relative weight of 0.9306. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of F41.1?
Under the General Equivalence Mappings, generalized anxiety disorder converts to ICD-9-CM 300.02 (generalized anxiety dis). The mapping is a direct match.
Does F41.1 risk-adjust for Medicare Advantage payment?
Not for Medicare Advantage: F41.1 maps to no category in the CMS-HCC V28 model. It still risk-adjusts in the RxHCC Part D (V08) category 133 (Anxiety and Other Psychiatric Disorders).
