G70.1

Toxic myoneural disorders

Risk-adjusting (HCC)Billable code

HCC risk adjustment mapping

CMS-HCC V28

HCC196

Myasthenia Gravis without (Acute) Exacerbation and Other Myoneural Disorders

CMS-HCC ESRD V24

HCC75

Myasthenia Gravis/Myoneural Disorders and Guillain-Barre Syndrome/Inflammatory and Toxic Neuropathy

RxHCC V08

RXHCC153

Myasthenia Gravis and Other Myoneural Disorders

Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

This code · G70.1

Code first

(T51-T65) to identify toxic agent

Inherited from G70Myasthenia gravis and other myoneural disorders

Excludes 1

botulism (A05.1, A48.51-A48.52) transient neonatal myasthenia gravis (P94.0)

Inherited from chapter 6Diseases of the nervous system

Excludes 2

certain conditions originating in the perinatal period (P04-P96) certain infectious and parasitic diseases (A00-B99) complications of pregnancy, childbirth and the puerperium (O00-O9A) congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) endocrine, nutritional and metabolic diseases (E00-E88) injury, poisoning and certain other consequences of external causes (S00-T88) neoplasms (C00-D49) symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Official Guidelines for G70.1

FY 2026 ›

I.C.6Chapter-specific guidanceChapter 6: Diseases of the Nervous System (G00-G99)

Subsections

Find G70.1 in the alphabetic index

3 index paths lead to this code