G70.01 Myasthenia gravis with (acute) exacerbation
Billable ICD-10-CM code, FY2026. Acts as a Major Complication or Comorbidity (MCC) as a secondary diagnosis.
Applicable to
- Myasthenia gravis in crisis
Applies from G70 Myasthenia gravis and other myoneural disorders
Excludes1 (never code together)
- botulism (A05.1, A48.51-A48.52)
- transient neonatal myasthenia gravis (P94.0)
Risk adjustment (HCC)
- CMS-HCC V28: HCC 195 — Myasthenia Gravis with (Acute) Exacerbation
- CMS-HCC V22: HCC 75 — Myasthenia Gravis/Myoneural Disorders, Inflammatory and Toxic Neuropathy
- RxHCC V08: HCC 153 — Myasthenia Gravis and Other Myoneural Disorders
- ESRD V24: HCC 75
MS-DRG index
Defines the logic of DRG(s) 056-057 in MDC 01.
Approximate ICD-9-CM (GEMs)
358.01 Myasthenia gravis with (acute) exacerbation
Code annotations containing back-references to G70.01
Back-references to G70.0
- Type 1 Excludes:
E32 Diseases of thymus ("myasthenia gravis (G70.0)") - Type 1 Excludes:
P94.0 Transient neonatal myasthenia gravis ("myasthenia gravis (G70.0)")
Diagnosis Index entries for G70.01
- Erb-Goldflam disease or syndrome › with exacerbation (acute)
- Erb-Goldflam disease or syndrome › in crisis
- Goldflam-Erb disease or syndrome › with exacerbation (acute)
- Goldflam-Erb disease or syndrome › in crisis
- Myasthenia › gravis › with exacerbation (acute)
- Myasthenia › gravis › in crisis
- Myasthenia › gravis › pseudoparalytica › with exacerbation (acute)
- Myasthenia › gravis › pseudoparalytica › in crisis
- Paralysis, paralytic (complete) (incomplete) › asthenic bulbar › with exacerbation (acute)
- Paralysis, paralytic (complete) (incomplete) › asthenic bulbar › in crisis
- Paralysis, paralytic (complete) (incomplete) › bulbospinal › with exacerbation (acute)
- Paralysis, paralytic (complete) (incomplete) › bulbospinal › in crisis
- Syndrome › Hoppe-Goldflam › with exacerbation (acute)
- Syndrome › Hoppe-Goldflam › in crisis
- Syndrome › pseudoparalytica › with exacerbation (acute)
- Syndrome › pseudoparalytica › in crisis
Nearby codes
G70 Myasthenia gravis and other myoneural disordersG70.0 Myasthenia gravisG70.00 Myasthenia gravis without (acute) exacerbationG70.01 Myasthenia gravis with (acute) exacerbation (this code)G70.1 Toxic myoneural disordersG70.2 Congenital and developmental myastheniaG70.8 Other specified myoneural disordersG70.80 Lambert-Eaton syndrome, unspecifiedG70.81 Lambert-Eaton syndrome in disease classified elsewhere