437.5 MOYAMOYA DISEASE


Code Information

Diagnosis Code: 437.5

Short Description: Moyamoya disease

Long Description: Moyamoya disease

Code Classification:

  • Diseases of the circulatory system (390–459)
    • Cerebrovascular disease (430-438)
      • 437 Other and ill-defined cerebrovascular disease
        • 437.5 Moyamoya disease

Code Version: 2015 ICD-9-CM


References to Index of Diseases and Injuries

The code 437.5 has the following ICD-9-CM references to the Index of Diseases and Injuries
  • Disease, diseased - see also Syndrome
    • Moyamoya 437.5
    • Nishimoto (-Takeuchi) 437.5
  • Encephaloduroarteriomyosynangiosis (EDAMS) 437.5
  • Moya Moya disease 437.5
  • Nishimoto (-Takeuchi) disease 437.5

Crosswalk Information

The code 437.5 converts into the following ICD-10 code(s):
ICD-9 Code ICD-10 Code ICD-10 Description
437.5 Right Arrow I67.5 Moyamoya disease
This ICD-9 to ICD-10 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-9 Code ICD-9 Description
437.0 Cerebral atherosclerosis
437.1 Other generalized ischemic cerebrovascular disease
437.2 Hypertensive encephalopathy
437.3 Cerebral aneurysm, nonruptured
437.4 Cerebral arteritis
437.6 Nonpyogenic thrombosis of intracranial venous sinus
437.7 Transient global amnesia
437.8 Other ill-defined cerebrovascular disease
437.9 Unspecified cerebrovascular disease


This page was last updated on: 10/1/2014