986Toxic effect of carbon monoxide
- Legacy / Not Valid for Submission
- Replaced October 1, 2015
986 is a legacy ICD-9-CM diagnosis code for toxic effect of carbon monoxide. It was valid on U.S. claims through September 30, 2015 and cannot be reported for services on or after October 1, 2015, when ICD-10-CM replaced the ICD-9 code set. Under the CMS General Equivalence Mappings, it maps to 20 ICD-10-CM candidates: T58.01XA, T58.02XA, T58.03XA, T58.04XA, T58.11XA, T58.12XA, T58.13XA, T58.14XA, T58.2X1A, T58.2X2A, T58.2X3A, T58.2X4A, T58.8X1A, T58.8X2A, T58.8X3A, T58.8X4A, T58.91XA, T58.92XA, T58.93XA, and T58.94XA.
Code Identity
Convert 986 to ICD-10-CM
Based on the final CMS General Equivalence Mappings (GEMs), 986 crosswalks to the following ICD-10-CM codes. When more than one candidate is listed, pick the code the documentation supports.
Index of Diseases References
Entries in the final ICD-9-CM Index to Diseases and Injuries that point to 986. Tap the icons for the official index conventions.
- Asphyxia asphyxiation by 799.01
- carbon monoxide 986
- Carboxyhemoglobinemia 986
- Inhalation
- carbon monoxide 986
- Leukemia leukemic congenital M9800 3 208.9
- granulocytic M9860 3 205.9
- acute M9861 3 205.0
- aleukemic M9864 3 205.8
- blastic M9861 3 205.0
- chronic M9863 3 205.1
- subacute M9862 3 205.2
- subleukemic M9864 3 205.8
- monomyelocytic M9860 3 see Leukemia myelomonocytic
- myeloblastic M9861 3 205.0
- myelogenous M9860 3 205.9
- acute M9861 3 205.0
- aleukemic M9864 3 205.8
- chronic M9863 3 205.1
- monocytoid M9863 3 205.1
- subacute M9862 3 205.2
- subleukemic M9864 205.8
- myeloid M9860 3 205.9
- acute M9861 3 205.0
- aleukemic M9864 3 205.8
- chronic M9863 3 205.1
- subacute M9862 3 205.2
- subleukemic M9864 3 205.8
- Naegeli type monocytic M9863 3 205.1
- neutrophilic M9865 3 205.1
- promyelocytic acute M9866 3 205.0
- granulocytic M9860 3 205.9
- Myelosis M9860 3 SEE ALSO Leukemia myeloid 205.9
- acute M9861 3 205.0
- aleukemic M9864 3 205.8
- chronic M9863 3 205.1
- megakaryocytic M9920 3 207.2
- nonleukemic chronic 288.8
- subacute M9862 3 205.2
- Naegeli s
- leukemia monocytic M9863 3 205.1
Information for Patients
Carbon Monoxide Poisoning
Carbon monoxide (CO) is a gas that has no odor or color. But it is very dangerous. It can cause sudden illness and death. CO is found in combustion fumes, such as those made by cars and trucks, lanterns, stoves, gas ranges and heating systems. CO from these fumes can build up in places that don't have a good flow of fresh air.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Questions About 986
Is 986 (toxic effect of carbon monoxide) still a valid code?
No. This code belonged to ICD-9-CM, which the United States retired after September 30, 2015. Claims with dates of service on or after October 1, 2015 must use ICD-10-CM codes, such as T58.01XA, T58.02XA, and T58.03XA.
What is the ICD-10 replacement for 986?
The General Equivalence Mappings list 20 ICD-10-CM candidates for this code: T58.01XA (Toxic effect of carb monx from mtr veh exhaust, acc, init), T58.02XA (Toxic eff of carb monx from mtr veh exhaust, slf-hrm, init), T58.03XA (Toxic effect of carb monx from mtr veh exhaust, asslt, init), T58.04XA (Toxic effect of carb monx from mtr veh exhaust, undet, init), T58.11XA (Toxic effect of carb monx from utility gas, acc, init), T58.12XA (Toxic effect of carb monx from utility gas, self-harm, init), T58.13XA (Toxic effect of carb monx from utility gas, assault, init), T58.14XA (Toxic effect of carb monx from utility gas, undet, init), T58.2X1A (Tox eff of carb monx fr incmpl combst dmst fuel, acc, init), T58.2X2A (Tox eff of carb monx fr incmpl combst dmst fuel,slf-hrm,init), T58.2X3A (Tox eff of carb monx fr incmpl combst dmst fuel, asslt, init), T58.2X4A (Tox eff of carb monx fr incmpl combst dmst fuel, undet, init), T58.8X1A (Toxic effect of carb monx from oth source, accidental, init), T58.8X2A (Toxic effect of carb monx from oth source, self-harm, init), T58.8X3A (Toxic effect of carb monx from oth source, assault, init), T58.8X4A (Toxic effect of carb monx from oth source, undet, init), T58.91XA (Toxic effect of carb monx from unsp source, acc, init), T58.92XA (Toxic effect of carb monx from unsp source, self-harm, init), T58.93XA (Toxic effect of carb monx from unsp source, assault, init), and T58.94XA (Toxic effect of carb monx from unsp source, undet, init). Each match is approximate, so the right choice depends on what the documentation supports.
What did 986 mean?
In the final ICD-9-CM release, this code described toxic effect of carbon monoxide. It sat in block 986 Toxic effect of carbon monoxide under Injury and poisoning (800–999).
Why does 986 map to more than one ICD-10 code?
ICD-10-CM is more specific than ICD-9-CM. The detail packed into this single legacy code was split across T58.01XA, T58.02XA, T58.03XA, T58.04XA, T58.11XA, T58.12XA, T58.13XA, T58.14XA, T58.2X1A, T58.2X2A, T58.2X3A, T58.2X4A, T58.8X1A, T58.8X2A, T58.8X3A, T58.8X4A, T58.91XA, T58.92XA, T58.93XA, and T58.94XA, so the General Equivalence Mappings list every candidate rather than forcing one. The correct target is the one the documentation supports.
