ICD-10 F98.5
Billable / SpecificAdult onset fluency disorder
About ICD-10-CM F98.5
ICD-10-CM code F98.5 represents Adult onset fluency disorder. This is a billable/specific code in the Mental, Behavioral, and Neurodevelopmental chapter (block F98). The 2026 edition of ICD-10-CM F98.5 became effective on October 1, 2025.
Type 1 Excludes
Pure excludes, these codes can never be coded together with F98.5. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- childhood onset fluency disorder (F80.81)
- dysphasia (R47.02)
- fluency disorder in conditions classified elsewhere (R47.82)
- fluency disorder (stuttering) following cerebrovascular disease (I69. with final characters -23)
- tic disorders (F95.-)
Medicare LCD Coverage for F98.5
Local Coverage Determinations (LCDs) from CMS MACs that list F98.5 as a covered diagnosis.
Showing top 10 of 298 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing F98.5.
2 Cigna
5 Medicare
CPT Codes Commonly Billed with F98.5
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 95857 CMS LCD: Billing and Coding: Outpatient Speech Language Pathology CMS LCD
- 92512 CMS LCD: Billing and Coding: Outpatient Speech Language Pathology CMS LCD
- 92617 CMS LCD: Billing and Coding: Outpatient Speech Language Pathology CMS LCD
- 92520 CMS LCD: Billing and Coding: Outpatient Speech Language Pathology CMS LCD
- 92630 CMS LCD: Billing and Coding: Outpatient Speech Language Pathology CMS LCD
- 92612 CMS LCD: Billing and Coding: Outpatient Speech Language Pathology CMS LCD
- 92606 CMS LCD: Billing and Coding: Outpatient Speech Language Pathology CMS LCD
- 92618 CMS LCD: Billing and Coding: Outpatient Speech Language Pathology CMS LCD
- 92650 CMS LCD: Billing and Coding: Outpatient Speech Language Pathology CMS LCD
- 31579 CMS LCD: Billing and Coding: Outpatient Speech Language Pathology CMS LCD
Convert F98.5 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| F98.5 | 3070 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To F98.5
Other codes in section F90-F98 (Behavioral and emotional disorders with onset usually occurring in childhood and adolescence).
ICD-10 F98.5, Billing FAQ
Is ICD-10 code F98.5 billable? +
Yes, F98.5 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What codes are Type 1 Excludes for F98.5? +
Type 1 Excludes (never code together with F98.5): childhood onset fluency disorder (F80.81); dysphasia (R47.02); fluency disorder in conditions classified elsewhere (R47.82)
What CPT codes are commonly billed with F98.5? +
Procedures frequently paired with F98.5 include: 95857, 92512, 92617, 92520, 92630.
What ICD-9 codes does F98.5 map to? +
Per CMS GEMs, F98.5 maps to ICD-9 codes: 3070. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 1, 2026.
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