ICD-9 Code 972.6

Poisoning by other antihypertensive agents

Not Valid for Submission

972.6 is a legacy non-billable code used to specify a medical diagnosis of poisoning by other antihypertensive agents. This code was replaced on September 30, 2015 by its ICD-10 equivalent.

ICD-9: 972.6
Short Description:Pois-antihyperten agent
Long Description:Poisoning by other antihypertensive agents

Convert 972.6 to ICD-10

The following crosswalk between ICD-9 to ICD-10 is based based on the General Equivalence Mappings (GEMS) information:

  • T46.4X1A - Poisoning by angiotens-convert-enzyme inhibitors, acc, init
  • T46.4X2A - Poisn by angiotens-convert-enzyme inhibtr, self-harm, init
  • T46.4X3A - Poisoning by angiotens-convert-enzyme inhibtr, assault, init
  • T46.4X4A - Poisoning by angiotens-convert-enzyme inhibtr, undet, init
  • T46.5X1A - Poisoning by oth antihypertn drugs, accidental, init
  • T46.5X2A - Poisoning by oth antihypertensive drugs, self-harm, init
  • T46.5X3A - Poisoning by oth antihypertensive drugs, assault, init
  • T46.5X4A - Poisoning by oth antihypertensive drugs, undetermined, init

Code Classification

  • Injury and poisoning (800–999)
    • Poisoning by drugs, medicinals and biological substances (960-979)
      • 972 Poisoning by agents primarily affecting the cardiovascular system

Information for Medical Professionals

Synonyms

  • Accidental amiodarone overdose
  • Accidental antihypertensive overdose
  • Accidental atenolol overdose
  • Accidental bretylium overdose
  • Accidental clonidine overdose
  • Accidental clonidine poisoning
  • Accidental guanethidine overdose
  • Accidental guanethidine poisoning
  • Accidental hydralazine overdose
  • Accidental hydralazine poisoning
  • Accidental poisoning by angiotensin-converting-enzyme inhibitors
  • Adrenergic neurone blocking drug overdose
  • Antihypertensive overdose
  • Antihypertensive overdose of undetermined intent
  • Bretylium overdose
  • Bretylium overdose of undetermined intent
  • Class II antiarrhythmic overdose
  • Clonidine overdose
  • Clonidine overdose of undetermined intent
  • Clonidine poisoning of undetermined intent
  • Guanethidine overdose
  • Guanethidine overdose of undetermined intent
  • Hydralazine overdose
  • Hydralazine overdose of undetermined intent
  • Hydralazine poisoning
  • Hydralazine poisoning of undetermined intent
  • Intentional antihypertensive overdose
  • Intentional bretylium overdose
  • Intentional clonidine overdose
  • Intentional clonidine poisoning
  • Intentional guanethidine overdose
  • Intentional guanethidine poisoning
  • Intentional hydralazine overdose
  • Intentional hydralazine poisoning
  • Intentional overdose by angiotensin-converting-enzyme inhibitors
  • Intentional poisoning by angiotensin-converting-enzyme inhibitors
  • Overdose of angiotensin-converting-enzyme inhibitors
  • Overdose of angiotensin-converting-enzyme inhibitors of undetermined intent
  • Poisoning by angiotensin-converting-enzyme inhibitors
  • Poisoning by angiotensin-converting-enzyme inhibitors of undetermined intent
  • Poisoning by antihypertensive agent
  • Poisoning by clonidine
  • Poisoning by guanethidine
  • Poisoning by rauwolfia alkaloid
  • Reserpine poisoning

Index to Diseases and Injuries

References found for the code 972.6 in the Index of Diseases and Injuries:


Information for Patients


Blood Pressure Medicines

What is high blood pressure?

High blood pressure, also called hypertension, is when blood puts too much pressure against the walls of your arteries. About 1 in 3 adults have high blood pressure, usually with no symptoms. But it can cause serious problems such as stroke, heart failure, heart attack, and kidney disease.

What lifestyle changes can help lower high blood pressure?

Healthy lifestyle changes can help reduce high blood pressure:

  • Losing weight
  • Being physically active
  • Managing stress
  • Reducing sodium in your diet
  • Avoiding alcohol, tobacco, and illegal drugs
  • Getting enough sleep

What if lifestyle changes alone cannot lower blood pressure?

Sometimes lifestyle changes alone cannot control or lower your high blood pressure. In that case, your health care provider may prescribe blood pressure medicines.

How do blood pressure medicines work?

Blood pressure medicines work in different ways to lower blood pressure:

  • Angiotensin-converting enzyme (ACE) inhibitors and angiotensin II receptor blockers (ARBs) keep your blood vessels from narrowing as much
  • Calcium channel blockers prevent calcium from entering the muscle cells of your heart and blood vessels. This allows the blood vessels to relax.
  • Diuretics remove extra water and sodium (salt) from your body. This lowers the amount of fluid in your blood. Diuretics are often used with other high blood pressure medicines, sometimes in one combined pill.
  • Beta blockers help your heart beat slower and with less force. This means that your heart pumps less blood through your blood vessels. Beta blockers are typically used only as a backup option or if you also have certain other conditions.

Often, two or more medicines work better than one. While taking the medicines, it is still important to keep up with your healthy lifestyle changes.

NIH: National Heart, Lung, and Blood Institute


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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.