F80.81

Childhood onset fluency disorder

FY2027Chapter 5: Mental, Behavioral and Neurodevelopmental disorders/F80–F89 Pervasive and specific developmental disorders

BillableComplete code, valid to report

F80.81 (also written F8081) is a billable ICD-10-CM diagnosis code for childhood onset fluency disorder. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 8 codes in category F80 (Specific developmental disorders of speech and language). The Alphabetic Index lists it under 5 entries. Its coding notes include 3 Excludes1 entries and 1 Excludes2 entry.

Excludes1

Not coded here. The listed conditions generally should not be reported together.

This code
  • adult onset fluency disorder (F98.5)
  • fluency disorder in conditions classified elsewhere (R47.82)
  • fluency disorder (stuttering) following cerebrovascular disease (I69. with final characters -23)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (1 note)
Inherited from Chapter 5 Mental, Behavioral and Neurodevelopmental disorders
  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

Care settings

How CMS programs treat this code. These are CMS claim edits and list entries, not coverage or eligibility rules.

Home Health Primary

Accepted as the primary (principal) diagnosis on a home health claim. The Home Health Grouper assigns it to the Behavioral Health clinical group.

Source: CMS Home Health Grouper Software v07.2.26, effective October 1, 2026

Includes

Further defines or gives examples of the content of the category.

Also from chapter/block level (1 note)
Inherited from Chapter 5 Mental, Behavioral and Neurodevelopmental disorders
  • disorders of psychological development

Inclusion terms

Conditions classified to this code.

This code
  • Cluttering NOS
  • Stuttering NOS

Alphabetic Index terms

Terms the official Alphabetic Index lists for this code. 5 entries