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 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)
Code First
The underlying condition must be sequenced before this code
- (T51-T65) to identify external agent
Also Known As / Clinical Terms
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
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.
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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.