ICD-9 Code 971.9
Poisoning by unspecified drug primarily affecting autonomic nervous system
Not Valid for Submission
971.9 is a legacy non-billable code used to specify a medical diagnosis of poisoning by unspecified drug primarily affecting autonomic nervous system. This code was replaced on September 30, 2015 by its ICD-10 equivalent.
ICD-9: | 971.9 |
Short Description: | Pois-autonomic agent NOS |
Long Description: | Poisoning by unspecified drug primarily affecting autonomic nervous system |
Convert 971.9 to ICD-10
The following crosswalk between ICD-9 to ICD-10 is based based on the General Equivalence Mappings (GEMS) information:
- T44.901A - Poisn by unsp drugs aff the autonm nervous sys, acc, init
- T44.902A - Poisn by unsp drugs aff the autonm nrv sys, slf-hrm, init
- T44.903A - Poisn by unsp drugs aff the autonm nervous sys, asslt, init
- T44.904A - Poisn by unsp drugs aff the autonm nervous sys, undet, init
- T44.991A - Poisoning by oth drug aff the autonm nervous sys, acc, init
- T44.992A - Poisn by oth drug aff the autonm nervous sys, slf-hrm, init
- T44.993A - Poisn by oth drug aff the autonm nervous sys, assault, init
- T44.994A - Poisn by oth drug aff the autonm nervous sys, undet, init
Code Classification
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Injury and poisoning (800–999)
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Poisoning by drugs, medicinals and biological substances (960-979)
- 971 Poisoning by drugs primarily affecting the autonomic nervous system
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Poisoning by drugs, medicinals and biological substances (960-979)
Information for Medical Professionals
ICD-9 Footnotes
General Equivalence Map Definitions
The ICD-9 and ICD-10 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
- Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
- No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
- Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.