G21.2
BillableSecondary parkinsonism due to other external agents
Secondary parkinsonism due to other external agents
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations, and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
Code First
The underlying condition must be sequenced before this code
Related Codes(6)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(34)
SNOMED CT
- 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced parkinsonism15782007
- 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine-induced parkinsonism15782007
- MPTP - Methylphenyltetrahydropyridine-induced parkinsonism15782007
- MPTP-induced parkinsonism15782007
- Methylphenyltetrahydropyridine-induced parkinsonism15782007
- Carbon monoxide-induced parkinsonism230293003
- Cyanide-induced parkinsonism766872002
- Parkinsonism caused by cyanide766872002
- Parkinsonism caused by carbon disulfide870295006
- Parkinsonism caused by carbon disulphide870295006
- Parkinsonism caused by pesticide1186798007
- Pesticide-induced Parkinsonism1186798007
- Toxin-induced parkinsonism1186836002
- Carbon monoxide encephalopathy1186868005
- Disorder of brain caused by carbon monoxide1186868005
- Encephalopathy caused by carbon monoxide1186868005
UMLS
Clinical Terms
- Carbon monoxide encephalopathy
- Parkinsonism caused by cyanide
- Toxin-induced parkinsonism
- Disorder of brain caused by carbon monoxide
- Methylphenyltetrahydropyridine-induced parkinsonism
- Parkinsonism caused by pesticide
- Cyanide-induced parkinsonism
- Pesticide-induced Parkinsonism
- MPTP - Methylphenyltetrahydropyridine-induced parkinsonism
- Encephalopathy caused by carbon monoxide
- Parkinsonism caused by carbon disulphide
- Carbon monoxide-induced parkinsonism
- 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced parkinsonism
- Parkinsonism caused by carbon disulfide
- MPTP-induced parkinsonism
- 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine-induced parkinsonism
Frequently Asked Questions
What is the ICD-10 code for secondary parkinsonism due to other external agents?
The ICD-10-CM code for secondary parkinsonism due to other external agents is G21.2. The full clinical description is "Secondary parkinsonism due to other external agents". G21.2 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code G21.2 mean?
ICD-10-CM code G21.2 represents “Secondary parkinsonism due to other external agents”. It is classified under Chapter 6: Diseases of the Nervous System and is a billable/specific code that can be used on a claim.
Is G21.2 a billable code?
Yes, G21.2 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is G21.2 in?
G21.2 is in Chapter 6: Diseases of the Nervous System (codes G00-G99).
What codes cannot be used with G21.2?
G21.2 has Excludes1 notes indicating codes that cannot be used together with it, including: Huntington's disease (G10); neurocognitive disorder with Lewy bodies (G31.83); Shy-Drager syndrome (G90.3); and 1 more.
What SNOMED CT codes does G21.2 map to?
G21.2 maps to 7 SNOMED CT concepts: 15782007, 1186868005, 230293003, 766872002, 870295006, and 2 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for G21.2?
G21.2 is linked to 1 UMLS Concept Unique Identifier: C0481392. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does G21.2 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like secondary parkinsonism due to other external agents affect a person's functioning: body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of G21.2?
G21.2 maps to the ICD-11 code: 8A00.2Y (Other specified secondary parkinsonism).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.