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ICD-10-CM Codes
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I00-I99
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I30-I5A
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I47-
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2023 ICD-10-CM Diagnosis Code I47.21
2023 ICD-10-CM Diagnosis Code I47.21
Torsades de pointes
2023 - New Code Billable/Specific Code
- I47.21 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- ICD-10-CM I47.21 is a new 2023 ICD-10-CM code that became effective on October 1, 2022.
- This is the American ICD-10-CM version of I47.21 - other international versions of ICD-10 I47.21 may differ.
Use AdditionalUse Additional Help
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. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
- code for adverse effect, if applicable, to identify drug (T36-T50
ICD-10-CM Range T36-T50
Poisoning by, adverse effect of and underdosing of drugs, medicaments and biological substancesCode First- , for adverse effects, the nature of the adverse effect, such as:
- adverse effect NOS (T88.7)
- aspirin gastritis (K29.-)
- blood disorders (D56-D76)
- contact dermatitis (L23-L25)
- dermatitis due to substances taken internally (L27.-)
- nephropathy (N14.0-N14.2)
Includes- adverse effect of correct substance properly administered
- poisoning by overdose of substance
- poisoning by wrong substance given or taken in error
- underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed
Note- The drug giving rise to the adverse effect should be identified by use of codes from categories T36-T50 with fifth or sixth character 5.
Type 1 Excludes- toxic reaction to local anesthesia in pregnancy (O29.3-)
Type 2 Excludes- abuse and dependence of psychoactive substances (F10-F19)
- abuse of non-dependence-producing substances (F55.-)
- immunodeficiency due to drugs (D84.821)
- drug reaction and poisoning affecting newborn (P00-P96)
- pathological drug intoxication (inebriation) (F10-F19)
Use Additional- code(s) to specify:
- manifestations of poisoning
- underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9)
- underdosing of medication regimen (Z91.12-, Z91.13-)
- T36 Poisoning by, adverse effect of and unde...
- T37 Poisoning by, adverse effect of and unde...
- T38 Poisoning by, adverse effect of and unde...
- T39 Poisoning by, adverse effect of and unde...
- T40 Poisoning by, adverse effect of and unde...
- T41 Poisoning by, adverse effect of and unde...
- T42 Poisoning by, adverse effect of and unde...
- T43 Poisoning by, adverse effect of and unde...
- T44 Poisoning by, adverse effect of and unde...
- T45 Poisoning by, adverse effect of and unde...
- T46 Poisoning by, adverse effect of and unde...
- T47 Poisoning by, adverse effect of and unde...
- T48 Poisoning by, adverse effect of and unde...
- T49 Poisoning by, adverse effect of and unde...
- T50 Poisoning by, adverse effect of and unde...
Code AlsoCode Also Help
A code also note instructs that 2 codes may be required to fully describe a condition but the sequencing of the two codes is discretionary, depending on the severity of the conditions and the reason for the encounter.
The following code(s) above
I47.21 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
- Applicable To annotations, or
- Code Also annotations, or
- Code First annotations, or
- Excludes1 annotations, or
- Excludes2 annotations, or
- Includes annotations, or
- Note annotations, or
- Use Additional annotations
that may be applicable to
I47.21:
- 308 Cardiac arrhythmia and conduction disorders with mcc
- 309 Cardiac arrhythmia and conduction disorders with cc
- 310 Cardiac arrhythmia and conduction disorders without cc/mcc
- 791 Prematurity with major problems
- 793 Full term neonate with major problems
Code History
- 2023 (effective 10/1/2022): New code
- Torsades de pointes I47.21
ICD-10-CM Codes Adjacent To I47.21
I45.9 Conduction disorder, unspecified
I46.2 Cardiac arrest due to underlying cardiac condition
I46.8 Cardiac arrest due to other underlying condition
I46.9 Cardiac arrest, cause unspecified
I47 Paroxysmal tachycardia
I47.0 Re-entry ventricular arrhythmia
I47.1 Supraventricular tachycardia
I47.2 Ventricular tachycardia
I47.21
Torsades de pointes
I47.29 Other ventricular tachycardia
I47.9 Paroxysmal tachycardia, unspecified
I48 Atrial fibrillation and flutter
I48.0 Paroxysmal atrial fibrillation
I48.1 Persistent atrial fibrillation
I48.11 Longstanding persistent atrial fibrillation
I48.19 Other persistent atrial fibrillation
I48.2 Chronic atrial fibrillation
I48.21 Permanent atrial fibrillation
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
