G70.81

Billable

ChapterG00–G99

Ranksubcategory

Official Description

Lambert-Eaton syndrome in disease classified elsewhere

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Billable/specific code (valid for reimbursement).
•Chapter 6: Diseases of the Nervous System (G00-G99).

Instructional Notes

Excludes1(Not coded here)

Lambert-Eaton syndrome in neoplastic disease (G73.1)

Code First

underlying disease

General instructions are available for the parent sections:

View CH6 Notes View G70 Notes

Clinical Hierarchy

CH6Diseases of the nervous system (G00-G99)

G70-G73Diseases of myoneural junction and muscle (G70-G73)

G70Myasthenia gravis and other myoneural disorders

G70.8Other specified myoneural disorders

G70.81Lambert-Eaton syndrome in disease classified elsewhere

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to G70.81:

categoryG70

Myasthenia gravis and other myoneural disorders

View context instructions

chapterCH6

Diseases of the nervous system (G00-G99)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to G70.81. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

1 raw paths

Syndrome1 unique routes

Lambert-Eaton

specified disease NEC→G70.81

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 056

Degenerative Nervous System Disorders with MCC

DRG 057

Degenerative Nervous System Disorders without MCC

Cross Reference

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Find surgical and procedural codes related to Lambert-Eaton syndrome in disease classified elsewhere.

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