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ICD10 code of Multiple Chemical Sensitivity and ICD9 code
What is the ICD10 code for Multiple Chemical Sensitivity? And the ICD9 code for Multiple Chemical Sensitivity?
ICD-10 code for Multiple Chemical Sensitivity: T78.4
ICD-9 code for Multiple Chemical Sensitivity: 989.89
Multiple Chemical Sensitivity is a condition where individuals experience adverse reactions to various chemicals at lower levels than most people. It is characterized by symptoms such as headaches, fatigue, dizziness, and difficulty breathing. The ICD-10 code T78.4 and ICD-9 code 989.89 are used to classify and document this condition for medical purposes.
Multiple Chemical Sensitivity (MCS), also known as environmental illness or chemical hypersensitivity, is a condition characterized by a heightened sensitivity to various environmental substances and chemicals. Unfortunately, in the current International Classification of Diseases (ICD-10), there is no specific code designated for Multiple Chemical Sensitivity. This absence of a distinct code makes it challenging to accurately track and classify individuals with MCS in healthcare systems.
However, it is worth mentioning that the lack of a specific ICD-10 code for MCS does not undermine the severity or legitimacy of the condition. Healthcare professionals often approach the diagnosis and management of MCS by considering its symptoms and impacts on the patient's daily life. The symptoms may include fatigue, headaches, dizziness, difficulty breathing, and cognitive issues.
In the previous version of the classification system, ICD-9, Multiple Chemical Sensitivity was also not explicitly listed as a separate condition. Given the evolving understanding of MCS and its recognition as a significant health concern, the absence of dedicated codes in both ICD-9 and ICD-10 may be an area where future revisions can address this diagnostic gap.
It is important for individuals with MCS to consult with healthcare providers who are knowledgeable about environmental health and chemical sensitivities. Despite the lack of a specific ICD-10 code, healthcare professionals can still provide appropriate care and support to individuals experiencing Multiple Chemical Sensitivity based on the patient's symptoms and overall health status.
However, it is worth mentioning that the lack of a specific ICD-10 code for MCS does not undermine the severity or legitimacy of the condition. Healthcare professionals often approach the diagnosis and management of MCS by considering its symptoms and impacts on the patient's daily life. The symptoms may include fatigue, headaches, dizziness, difficulty breathing, and cognitive issues.
In the previous version of the classification system, ICD-9, Multiple Chemical Sensitivity was also not explicitly listed as a separate condition. Given the evolving understanding of MCS and its recognition as a significant health concern, the absence of dedicated codes in both ICD-9 and ICD-10 may be an area where future revisions can address this diagnostic gap.
It is important for individuals with MCS to consult with healthcare providers who are knowledgeable about environmental health and chemical sensitivities. Despite the lack of a specific ICD-10 code, healthcare professionals can still provide appropriate care and support to individuals experiencing Multiple Chemical Sensitivity based on the patient's symptoms and overall health status.
Diseasemaps
ICD-10-CM Code F45.9
Posted Oct 24, 2017 by Paul 3000
This is a tricky one. I actually don't call my chemical hypersensitivity MCS. I have a Toxic Injury. One of the symptoms of my Toxic Injury hapoens to be chemicall hypersensitivity. There are multiple codes for Toxic Effects. They are listed under IDC 10 T51-T65.
The
US does not currently recognize it (that I'm aware of) but Germany, Austria and Japan do under the "Toxic Effects" headings.
The
US does not currently recognize it (that I'm aware of) but Germany, Austria and Japan do under the "Toxic Effects" headings.
Posted Oct 27, 2017 by JLMcK 5550
Does it matter? So many conventional doctors refuse to recognize MCS as it would affect their pro-chemical bottom line. Finding a doctor who does recognize it is difficult, but not impossible.
Posted Dec 21, 2017 by Candace 800
The disease MCS – Multiple Chemical Sensitivity (ICD-10 T78.4) is mentioned at the Thesaurus “Safety and Health at Work”, alphabetical Part, Status May 2009, as:
Multiple Chemical Sensitivity (B02.19.00)
At the systematic Part MCS – Multiple Chemical Sensitivity is found at the category B02:
“Work related Disease and Occupational Disease/Disease”
Multiple Chemical Sensitivity (B02.19.00)
At the systematic Part MCS – Multiple Chemical Sensitivity is found at the category B02:
“Work related Disease and Occupational Disease/Disease”
Posted Jan 6, 2019 by Cindi 3050
In the UK this is not recognised so it won't be coded
Posted Apr 1, 2019 by Susan 2500
I don't understand this question.
Posted Jun 4, 2019 by Heather 3000
Multiple Chemical Sensitivity (MCS) is a condition which is rendering growing numbers of people unfit for work. Those who are seriously oversensitive to chemicals or perfumes suffer, inter alia, headaches, nausea and symptoms affecting the airways even if chemicals are present in the air only in small quantities, and many new research projects have shown that the condition is a physical disease.
However, national diagnosis codes are not in use in all countries, and without one, people who fall ill are not entitled to social security, for example sickness benefit and supported housing. Although MCS cannot be medically cured given the present state of knowledge, it has been shown that the condition can be prevented from becoming disabling by means of early exposure.
In various countries, including Germany and Austria, MCS has been assigned a national diagnosis code, which helps to prevent deterioration of the patient’s condition. In other countries, such as Finland, there is no such code. In Finland it has been estimated that some 20 000 people are permanently unfit for work because of serious MCS.
If the World Health Organisation (WHO) were to insert a diagnosis code for MCS in its international classification of diseases (either the ICD-10 or the next version, ICD-11, which is currently being prepared), a diagnosis code would also come into use in those countries where there is no national diagnosis code.
Is the Commission aware of the problems arising from the fact that there is no diagnosis code for MCS in the WHO’s classification of diseases? Will it seek, through its representation at the WHO, to have a diagnosis code for it added to the international classification of diseases?
However, national diagnosis codes are not in use in all countries, and without one, people who fall ill are not entitled to social security, for example sickness benefit and supported housing. Although MCS cannot be medically cured given the present state of knowledge, it has been shown that the condition can be prevented from becoming disabling by means of early exposure.
In various countries, including Germany and Austria, MCS has been assigned a national diagnosis code, which helps to prevent deterioration of the patient’s condition. In other countries, such as Finland, there is no such code. In Finland it has been estimated that some 20 000 people are permanently unfit for work because of serious MCS.
If the World Health Organisation (WHO) were to insert a diagnosis code for MCS in its international classification of diseases (either the ICD-10 or the next version, ICD-11, which is currently being prepared), a diagnosis code would also come into use in those countries where there is no national diagnosis code.
Is the Commission aware of the problems arising from the fact that there is no diagnosis code for MCS in the WHO’s classification of diseases? Will it seek, through its representation at the WHO, to have a diagnosis code for it added to the international classification of diseases?
Posted Aug 22, 2019 by Carmen Rosemarie 2550
NOt sure about this one.
Posted Nov 18, 2019 by Angie P. 5000
There is no one code for MCS.
Posted Dec 12, 2019 by Joanna 6200
F45.9 is somatoform disorders, unspecified. The ICD-10-CM tabular indicates that somatoform disorders definition is: "Types of disorders causing inconsistent physical symptoms that cannot be explained." I cannot speak for others with MCS, but my reactions are a consistent constellation of symptoms with a direct correlation to the toxicant. In the absence of the trigger, I have no symptoms.
I've seen it coded as Z91.09, but that is technically "other allergy status, other than to drugs and biological substances." Again, this doesn't fit, as the mechanism of action is typically not an allergic one (though it could be), but rather a toxic reaction. Z codes are to identify the patient history status, but not the current condition. It does not capture that this is an ongoing condition.
There should be a condition code that indicates an ongoing condition that we battle with daily, that can exacerbate at any moment. A code like that would more accurately reflect the condition as a whole. For example, severe persistent asthma codes to J45.50 when the asthma exists but is not currently in a flare. When it is in exacerbation, it codes to J45.51. When it is in status asthmaticus exacerbation, it codes to J45.52. Three codes to describe the condition and its various acute stages. There are no codes like this for MCS, though there should be. This would be the best coding structure to represent the chronicity of our condition.
The T codes are most appropriate when the patient is either in the initial, subsequent, or sequela stages of an exposure, though I still cannot find a specific code. There is toxic exposure to "chemical substances NEC".
Then there is the cause:
Accidental poisoning: T65.91XX-
Self-harm poisoning: T65.92XX-
Poisoning by assault: T65.93XX-
Poisoning, undetermined cause: T65.94XX-
NEC means "not elsewhere classifiable", meaning that the specific substance has been identified, but there is no good code selection. It is the catch-all for the acute phase of the exposure to the toxin (7th character A), the subsequent phase (7th character D...subsequent phase is when the acute phase has resolved but you are still recovering from the exposure), and sequela (7th character S...this is when the acute and healing phases are complete, yet you are left with a persistent deficit of some sort.
It is disturbing to work with these codes every single day (this is my job), though I have yet (in five years of doing this job) to ever see codes available that accurately reflects our condition.
I've seen it coded as Z91.09, but that is technically "other allergy status, other than to drugs and biological substances." Again, this doesn't fit, as the mechanism of action is typically not an allergic one (though it could be), but rather a toxic reaction. Z codes are to identify the patient history status, but not the current condition. It does not capture that this is an ongoing condition.
There should be a condition code that indicates an ongoing condition that we battle with daily, that can exacerbate at any moment. A code like that would more accurately reflect the condition as a whole. For example, severe persistent asthma codes to J45.50 when the asthma exists but is not currently in a flare. When it is in exacerbation, it codes to J45.51. When it is in status asthmaticus exacerbation, it codes to J45.52. Three codes to describe the condition and its various acute stages. There are no codes like this for MCS, though there should be. This would be the best coding structure to represent the chronicity of our condition.
The T codes are most appropriate when the patient is either in the initial, subsequent, or sequela stages of an exposure, though I still cannot find a specific code. There is toxic exposure to "chemical substances NEC".
Then there is the cause:
Accidental poisoning: T65.91XX-
Self-harm poisoning: T65.92XX-
Poisoning by assault: T65.93XX-
Poisoning, undetermined cause: T65.94XX-
NEC means "not elsewhere classifiable", meaning that the specific substance has been identified, but there is no good code selection. It is the catch-all for the acute phase of the exposure to the toxin (7th character A), the subsequent phase (7th character D...subsequent phase is when the acute phase has resolved but you are still recovering from the exposure), and sequela (7th character S...this is when the acute and healing phases are complete, yet you are left with a persistent deficit of some sort.
It is disturbing to work with these codes every single day (this is my job), though I have yet (in five years of doing this job) to ever see codes available that accurately reflects our condition.
Posted Dec 31, 2019 by rswarts 100
NOT SURE WHAT THIS MEANS
Posted Jan 30, 2020 by Noeleen 2500
Again the health practitioners do not officially recognize this so they may file this as something else like an enviromental illness, a toxic injury or as an allergy.
Posted Feb 11, 2020 by Rheama 1600
I don't understand I don't understand
Posted Mar 8, 2020 by MCSzombie 6220
MCS is coded as:
J68.9: unspecified respiratory conditions due to inhalation of fumes, gas, and chemical vapors;
T78.4: unspecified allergies (allergic reaction Nitrous Oxide System (NOS)-hypersensitivity NOS-idiosyncrasy NOS).
T78.40XA: Allergy not otherwise specified, initial encounter
This code can be helpful if you have had a chemical exposure. It's incidental and can be helpful in documenting a chemical injury but does NOT indicate MCS, just that you should take care that MCS may develop.
Z57.39: Occupational exposure to other air contaminants
Z03.6: (with specificity, there is more to this code but depends upon how the encounter occurred) Encounter for observation for suspected toxic effect from ingested substance ruled out
See also:
https://icdlist.com/icd-10/Z57.39
https://www.icd10data.com/ICD10CM/Codes/Z00-Z99/Z00-Z13/Z03-/Z03.6
See also: https://www.icd10data.com/ICD10CM/Codes/S00-T88/T66-T78/T78-
It is *NOT* F45.9 - Somatoform disorder, unspecified -- which is a mental health diagnosis.
See also:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5794238/
J68.9: unspecified respiratory conditions due to inhalation of fumes, gas, and chemical vapors;
T78.4: unspecified allergies (allergic reaction Nitrous Oxide System (NOS)-hypersensitivity NOS-idiosyncrasy NOS).
T78.40XA: Allergy not otherwise specified, initial encounter
This code can be helpful if you have had a chemical exposure. It's incidental and can be helpful in documenting a chemical injury but does NOT indicate MCS, just that you should take care that MCS may develop.
Z57.39: Occupational exposure to other air contaminants
Z03.6: (with specificity, there is more to this code but depends upon how the encounter occurred) Encounter for observation for suspected toxic effect from ingested substance ruled out
See also:
https://icdlist.com/icd-10/Z57.39
https://www.icd10data.com/ICD10CM/Codes/Z00-Z99/Z00-Z13/Z03-/Z03.6
See also: https://www.icd10data.com/ICD10CM/Codes/S00-T88/T66-T78/T78-
It is *NOT* F45.9 - Somatoform disorder, unspecified -- which is a mental health diagnosis.
See also:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5794238/
Posted Sep 27, 2020 by Rebecca St. Martin 3570
St this time codes fo not exist. That is one of the biggest challenges we face
Posted Nov 12, 2020 by shelley 3650
They are billable codes
Posted Jul 24, 2021 by Serenity 2500
I am unaware of standard diagnostic codes for MCS.
Posted Nov 11, 2021 by kola05 2620
Translated from spanish
Improve translation
ICD-9. 995.3 (OTHER ALLERGIES)
Posted May 16, 2017 by Emilio 2070
Translated from spanish
Improve translation
ICD 9 code 995.3
CIE 10: code T78.40
CIE 10: code T78.40
Posted Sep 10, 2017 by Pilar 2000
