ICD-9 Code 977.9
Poisoning by unspecified drug or medicinal substance
Not Valid for Submission
977.9 is a legacy non-billable code used to specify a medical diagnosis of poisoning by unspecified drug or medicinal substance. This code was replaced on September 30, 2015 by its ICD-10 equivalent.
ICD-9: | 977.9 |
Short Description: | Poison-medicinal agt NOS |
Long Description: | Poisoning by unspecified drug or medicinal substance |
Convert 977.9 to ICD-10
The following crosswalk between ICD-9 to ICD-10 is based based on the General Equivalence Mappings (GEMS) information:
Code Classification
-
Injury and poisoning (800–999)
-
Poisoning by drugs, medicinals and biological substances (960-979)
- 977 Poisoning by other and unspecified drugs and medicinals
-
Poisoning by drugs, medicinals and biological substances (960-979)
Information for Medical Professionals
Index to Diseases and Injuries
References found for the code 977.9 in the Index of Diseases and Injuries:
- Allergy allergic reaction 995.3
- drug medicinal substance and biological any correct medicinal substance properly administered external internal 995.27
- wrong substance given or taken NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. 977.9- specified drug or substance see Table of Drugs and Chemicals
- wrong substance given or taken NEC NEC "Not elsewhere classifiable"
- drug medicinal substance and biological any correct medicinal substance properly administered external internal 995.27
- Anaphylactic reaction or shock correct substance properly administered 995.0
- due to
- drug or medicinal substance
- overdose or wrong substance given or taken 977.9
- specified drug see Table of Drugs and Chemicals
- overdose or wrong substance given or taken 977.9
- overdose or wrong substance given or taken 977.9
- specified drug see Table of Drugs and Chemicals
- drug or medicinal substance
- due to
- Arthus phenomenon 995.21
- due to
- overdose or wrong substance given or taken 977.9
- specified drug see Table of Drugs and Chemicals
- overdose or wrong substance given or taken 977.9
- due to
- Constipation 564.00
- drug induced
- overdose or wrong substance given or taken 977.9
- specified drug see Table of Drugs and Chemicals
- overdose or wrong substance given or taken 977.9
- drug induced
- Dermatitis allergic contact occupational venenata 692.9
- due to
- drugs and medicinals correct substance properly administered internal use 693.0
- wrong substance given or taken 977.9
- specified substance see Table of Drugs and Chemicals
- wrong substance given or taken 977.9
- ingestion or injection of
- drug correct substance properly administered 693.0
- wrong substance given or taken 977.9
- specified substance see Table of Drugs and Chemicals
- wrong substance given or taken 977.9
- drug correct substance properly administered 693.0
- drugs and medicinals correct substance properly administered internal use 693.0
- due to
- Disease diseased SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Syndrome- Lyell s toxic epidermal NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular.rolysis 695.15- due to drug
- overdose or wrong substance given or taken 977.9
- specific drug see Table of Drugs and Chemicals
- overdose or wrong substance given or taken 977.9
- due to drug
- Lyell s toxic epidermal NEC NEC "Not elsewhere classifiable"
- Effect adverse NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular.- drugs and medicinals 995.20
- overdose or wrong substance given or taken 977.9
- specified drug see Table of Drugs and Chemicals
- overdose or wrong substance given or taken 977.9
- drugs and medicinals 995.20
- Epidermolysis
- NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular.roticans combustiformis 695.15- due to drug
- overdose or wrong substance given or taken 977.9
- specified drug see Table of Drugs and Chemicals
- overdose or wrong substance given or taken 977.9
- due to drug
- NEC NEC "Not elsewhere classifiable"
- Ingestion
- drug or medicinal substance
- overdose or wrong substance given or taken 977.9
- specified drug see Table of Drugs and Chemicals
- overdose or wrong substance given or taken 977.9
- drug or medicinal substance
- Intolerance
- drug
- wrong substance given or taken in error 977.9
- specified drug see Table of Drugs and Chemicals
- wrong substance given or taken in error 977.9
- drug
- Lens see condition
- Lyell s disease or syndrome toxic epidermal NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular.rolysis 695.15- due to drug
- overdose or wrong substance given or taken 977.9
- specified drug see Table of Drugs and Chemicals
- overdose or wrong substance given or taken 977.9
- due to drug
- Medicine poisoning by overdose wrong substance given or taken in error 977.9
- specified drug or substance see Table of Drugs and Chemicals
- Narcosis
- due to drug
- overdose or wrong substance given or taken 977.9
- specified drug see Table of Drugs and Chemicals
- overdose or wrong substance given or taken 977.9
- due to drug
- NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular.rolysis toxic epidermal 695.15- due to drug
- overdose or wrong substance given or taken 977.9
- specified drug see Table of Drugs and Chemicals
- overdose or wrong substance given or taken 977.9
- due to drug
- Overdose overdosage drug 977.9
- specified drug or substance see Table of Drugs and Chemicals
- Polyneuropathy peripheral 356.9
- due to
- drug or medicinal substance 357.6
- overdose or wrong substance given or taken 977.9
- specified drug see Table of Drugs and Chemicals
- overdose or wrong substance given or taken 977.9
- drug or medicinal substance 357.6
- due to
- Porphyria acute congenital constitutional erythropoietic familial hepatica idiopathic idiosyncratic intermittent latent mixed hepatic photosensitive South African genetic Swedish 277.1
- due to drugs
- overdose or wrong substance given or taken 977.9
- specified drug see Table of Drugs and Chemicals
- overdose or wrong substance given or taken 977.9
- due to drugs
- Reaction
- drug NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Table of Drugs and Chemicals 995.20- overdose or poisoning 977.9
- specified drug see Table of Drugs and Chemicals
- wrong substance given or taken in error 977.9
- specified drug see Table of Drugs and Chemicals
- overdose or poisoning 977.9
- drug NEC NEC "Not elsewhere classifiable"
- Shock 785.50
- due to
- drug 995.0
- overdose or wrong substance given or taken 977.9
- specified drug see Table of Drugs and Chemicals
- overdose or wrong substance given or taken 977.9
- drug 995.0
- due to
- Syndrome SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Disease- Lyell s toxic epidermal NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular.rolysis 695.15- due to drug
- overdose or wrong substance given or taken 977.9
- specified drug see Table of Drugs and Chemicals
- overdose or wrong substance given or taken 977.9
- due to drug
- Lyell s toxic epidermal NEC NEC "Not elsewhere classifiable"
- Wrong drug given in error NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. 977.9- specified drug or substance see Table of Drugs and Chemicals
Information for Patients
Drug Reactions
Most of the time, medicines make our lives better. They reduce aches and pains, fight infections, and control problems such as high blood pressure or diabetes. But medicines can also cause unwanted reactions, such as drug interactions, side effects, and allergies.
What is a drug interaction?
A drug interaction is a change in the way a drug acts in the body when taken with certain other drugs, foods, or supplements or when taken while you have certain medical conditions. Examples include:
- Two drugs, such as aspirin and blood thinners
- Drugs and food, such as statins and grapefruit
- Drugs and supplements, such as gingko and blood thinners
- Drugs and medical conditions, such as aspirin and peptic ulcers
Interactions could cause a drug to be more or less effective, cause side effects, or change the way one or both drugs work.
What are side effects?
Side effects are unwanted, usually unpleasant, effects caused by medicines. Most are mild, such as a stomachache, dry mouth, or drowsiness, and go away after you stop taking the medicine. Others can be more serious. Sometimes a drug can interact with a disease that you have and cause a side effect. For example, if you have a heart condition, certain decongestants can cause you to have a rapid heartbeat.
What are drug allergies?
Drug allergies are another type of reaction. They can range from mild to life-threatening. Skin reactions, such as hives and rashes, are the most common type. Anaphylaxis, a serious allergic reaction, is less common.
How can I stay safe when taking medicines?
When you start a new prescription or over-the-counter medicine, make sure you understand how to take it correctly. Know which other medicines, foods, and supplements you need to avoid. Always talk to your health care provider or pharmacist if you have questions about your medicines.
[Read More]
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.
Index of Diseases and Injuries Definitions
- And - The word "and" should be interpreted to mean either "and" or "or" when it appears in a title.
- Code also note - A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
- Code first - Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
- Type 1 Excludes Notes - A type 1 Excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- Type 2 Excludes Notes - A type 2 Excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- Includes Notes - This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- Inclusion terms - List of terms is included under some codes. These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- NEC "Not elsewhere classifiable" - This abbreviation in the Alphabetic Index represents "other specified". When a specific code is not available for a condition, the Alphabetic Index directs the coder to the "other specified” code in the Tabular List.
- NOS "Not otherwise specified" - This abbreviation is the equivalent of unspecified.
- See - The "see" instruction following a main term in the Alphabetic Index indicates that another term should be referenced. It is necessary to go to the main term referenced with the "see" note to locate the correct code.
- See Also - A "see also" instruction following a main term in the Alphabetic Index instructs that there is another main term that may also be referenced that may provide additional Alphabetic Index entries that may be useful. It is not necessary to follow the "see also" note when the original main term provides the necessary code.
- 7th Characters - Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
- With - The word "with" should be interpreted to mean "associated with" or "due to" when it appears in a code title, the Alphabetic Index, or an instructional note in the Tabular List. The word "with" in the Alphabetic Index is sequenced immediately following the main term, not in alphabetical order.