ICD-10-CM 2027
ICD-10 code for Apprehensiveness
From the official ICD-10-CM alphabetic index entry “Apprehensiveness, abnormal”. Page updated September 29, 2026.
About coding Apprehensiveness
The ICD-10-CM code for Apprehensiveness is F41.9 (Anxiety disorder, unspecified).
Within F41, choose F41.9 (Anxiety disorder, unspecified) only when documentation doesn't support a more specific option: panic disorder [episodic paroxysmal anxiety] (F41.0), generalized anxiety disorder (F41.1), other mixed anxiety disorders (F41.3) and other specified anxiety disorders (F41.8).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 880 (Acute Adjustment Reaction and Psychosocial Dysfunction, relative weight 0.9306), in MDC 19 (Mental Diseases and Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about Apprehensiveness ICD-10 codes
What is the ICD-10 code for Apprehensiveness?
- F41.9 — Anxiety disorder, unspecified.
Is F41.9 billable?
- Yes. F41.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can F41.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict F41.9 as a principal diagnosis.
Is F41.9 a CC or MCC?
- No. F41.9 is neither a CC nor an MCC under MS-DRG v44.0.