F80.81 Childhood onset fluency disorder

Billable ICD-10-CM code, FY2026.

Applicable to

• Cluttering NOS
• Stuttering NOS

Excludes1 (never code together)

• 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)

MS-DRG index

Defines the logic of DRG(s) 091-093 in MDC 01.

Approximate ICD-9-CM (GEMs)

• 315.35 Childhood onset fluency disorder

Code annotations containing back-references to F80.81

Back-references to F80.81

• Type 1 Excludes: F98.5 Adult onset fluency disorder ("childhood onset fluency disorder (F80.81)")
• Type 1 Excludes: R47 Speech disturbances, not elsewhere classified ("cluttering (F80.81)")
• Type 1 Excludes: R47 Speech disturbances, not elsewhere classified ("stuttering (F80.81)")
• Type 1 Excludes: R47.82 Fluency disorder in conditions classified elsewhere ("childhood onset fluency disorder (F80.81)")

Back-references to F80

• Type 2 Excludes: F94.0 Selective mutism ("specific developmental disorders of speech and language (F80.-)")
• Code Also: G93.45 Developmental and epileptic encephalopathy ("developmental disorder of speech and language (F80.-)")
• Use Additional: Q87.87 Hao-Fountain Syndrome ("developmental speech disorder (F80.-)")
• Use Additional: Q87.88 CTNNB1 syndrome ("developmental disorder of speech and language (F80.-)")
• Type 1 Excludes: R47 Speech disturbances, not elsewhere classified ("specific developmental disorders of speech and language (F80.-)")
• Code Also: Z15.1 Genetic susceptibility to epilepsy and neurodevelopmental disorders ("developmental disorder of speech and language (F80.-)")
• Type 1 Excludes: Z55 Problems related to education and literacy ("disorders of psychological development (F80-F89)")

Diagnosis Index entries for F80.81

• Cluttering
• Disorder (of) › fluency › childhood onset
• Stammering
• Stuttering
• Stuttering › childhood onset

Nearby codes

• F80.0 Phonological disorder
• F80.1 Expressive language disorder
• F80.2 Mixed receptive-expressive language disorder
• F80.4 Speech and language development delay due to hearing loss
• F80.8 Other developmental disorders of speech and language
• F80.81 Childhood onset fluency disorder (this code)
• F80.82 Social pragmatic communication disorder
• F80.89 Other developmental disorders of speech and language
• F80.9 Developmental disorder of speech and language, unspecified