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ICD-10-CM 2027

ICD-10 code for Apprehension state

F41.1

Generalized anxiety disorder

✓ Billable / specific

From the official ICD-10-CM alphabetic index entry “Apprehension state”. Page updated September 29, 2026.

About coding Apprehension state

The ICD-10-CM code for Apprehension state is F41.1 (Generalized anxiety disorder).

Within F41 (other anxiety disorders), F41.1 is specifically for generalized anxiety disorder. Related codes cover panic disorder [episodic paroxysmal anxiety] (F41.0), other mixed anxiety disorders (F41.3), other specified anxiety disorders (F41.8) and anxiety disorder, unspecified (F41.9).

The conditions in its Excludes2 note aren't part of F41.1, but may be coded alongside it if the patient has both: neurasthenia (F48.8).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

Common questions about Apprehension state ICD-10 codes

What is the ICD-10 code for Apprehension state?

F41.1 — Generalized anxiety disorder.

Is F41.1 billable?

Yes. F41.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can F41.1 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict F41.1 as a principal diagnosis.

Is F41.1 a CC or MCC?

No. F41.1 is neither a CC nor an MCC under MS-DRG v44.0.