ICD-10-CM
ICD-10 code for Lambert-Eaton syndrome: G70.80
The CDC title for "Lambert-Eaton syndrome" is G70.8 (Other specified myoneural disorders), a header that is not billable. When nothing more specific is documented, the billable code is G70.80, Lambert-Eaton syndrome, unspecified.
Source: CDC ICD-10-CM FY2027 order file dated June 16, 2026. Publisher page
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Codes under G70.8, then other CDC titles that name lambert-eaton syndrome
A header groups codes and is not billed. A billable code is one you can report. Listed second marks a billable manifestation code (its CDC title says it is "classified elsewhere"): code the underlying disease or condition first, then this code.
Excludes1
Excludes1 means these codes are not reported together.
From G70. A note on a category applies to every code under it.
Related pages
- G70.80 code detailsNotes, nearby codes, CMS-HCC group
- Category G70.8Every code under it
- Chapter 6Diseases of the nervous system
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Lambert-Eaton syndrome?
The CDC title for "Lambert-Eaton syndrome" is G70.8 (Other specified myoneural disorders), a header that is not billable. When nothing more specific is documented, the billable code is G70.80, Lambert-Eaton syndrome, unspecified.
Is G70.80 billable?
Yes. G70.80 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What documentation notes apply to G70.80?
The CDC tabular list gives 2 Excludes1 notes (not coded together) for G70.80 and the categories above it. They are listed on this page.
What chapter is G70.80 in?
Chapter 6. Diseases of the nervous system.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.