ICD-10 F81.81
Billable / SpecificDisorder of written expression
About ICD-10-CM F81.81
ICD-10-CM code F81.81 represents Disorder of written expression. This is a billable/specific code in the Mental, Behavioral, and Neurodevelopmental chapter (block F81). The 2026 edition of ICD-10-CM F81.81 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under F81.81. Per CMS ICD-10-CM Tabular 2026.
- Specific learning disorder, with impairment in written expression
- Specific spelling disorder
Medicare LCD Coverage for F81.81
Local Coverage Determinations (LCDs) from CMS MACs that list F81.81 as a covered diagnosis.
Showing top 10 of 375 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing F81.81.
5 Medicare
CPT Codes Commonly Billed with F81.81
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 F81.81 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 |
|---|---|---|
| F81.81 | 31509 | 10000 |
| F81.81 | 3152 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To F81.81
Other codes in section F80-F89 (Pervasive and specific developmental disorders).
ICD-10 F81.81, Billing FAQ
Is ICD-10 code F81.81 billable? +
Yes, F81.81 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to F81.81? +
ICD-10 F81.81 includes: Specific learning disorder, with impairment in written expression; Specific spelling disorder.
What CPT codes are commonly billed with F81.81? +
Procedures frequently paired with F81.81 include: 95857, 92512, 92617, 92520, 92630.
What ICD-9 codes does F81.81 map to? +
Per CMS GEMs, F81.81 maps to ICD-9 codes: 31509, 3152. 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 July 16, 2026.
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