Question 1

Is F05 a billable ICD-10 code?

Accepted Answer

Yes, F05 is a valid billable ICD-10-CM code for delirium due to known physiological condition. It can be used for medical billing and reimbursement purposes.

Question 2

What does ICD-10 code F05 mean?

Accepted Answer

ICD-10-CM code F05 represents Delirium due to known physiological condition. This code is part of the International Classification of Diseases, 10th Revision, Clinical Modification used for medical coding and billing in the United States.

Question 3

When was ICD-10 code F05 introduced?

Accepted Answer

Code F05 has been part of ICD-10-CM since 2016, when the coding system was mandated for use in the United States. This code was included in the original US implementation.

Question 4

What is the parent category for ICD-10 code F05?

Accepted Answer

The parent category for F05 is section:F01-F09 (Mental disorders due to known physiological conditions (F01-F09)). This hierarchical classification helps organize related diagnoses for more accurate coding.

Question 5

What conditions are excluded from F05?

Accepted Answer

Code F05 has Type 1 Excludes (mutually exclusive conditions) including: delirium NOS (R41.0). These conditions cannot be coded together with F05 as they represent different diagnoses.

Question 6

Can F05 be used as principal diagnosis?

Accepted Answer

No, F05 is classified as an unacceptable principal diagnosis by the Medicare Code Editor. This code describes circumstances influencing health status rather than a current illness or injury. It should be used as a secondary diagnosis code.

F052026

Excludes11Not coded together

Code First2Sequence another code first

Excludes22Not included here

Notes9Additional information

Includes1Included conditions

Also Known As10Alternative terms

Medicare Code Editor Rules1CMS coding restrictions