ICD-10-CM Codes
R00-R99 Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
R00-R09 Symptoms and signs involving the circulatory and respiratory systems
R00- Abnormalities of heart beat

2019 ICD-10-CM Diagnosis Code R00.0

Tachycardia, unspecified

2016

2017

2018

2019

Billable/Specific Code

R00.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2019 edition of ICD-10-CM R00.0 became effective on October 1, 2018.
This is the American ICD-10-CM version of R00.0 - other international versions of ICD-10 R00.0 may differ.

Applicable To

Rapid heart beat
Sinoauricular tachycardia NOS
Sinus [sinusal] tachycardia NOS

Type 1 Excludes

Type 1 Excludes Help

A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as R00.0. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

neonatal tachycardia (
ICD-10-CM Diagnosis Code P29.11
Neonatal tachycardia
P29.11
)
paroxysmal tachycardia (
ICD-10-CM Diagnosis Code I47
- I47 Paroxysmal tachycardia
  - I47.0 Re-entry ventricular arrhythmia
  - I47.1 Supraventricular tachycardia
  - I47.2 Ventricular tachycardia
  - I47.9 Paroxysmal tachycardia, unspecified
I47.-
)

The following code(s) above R00.0 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 R00.0:

R00-R99
2019 ICD-10-CM Range R00-R99
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
Note
- This chapter includes symptoms, signs, abnormal results of clinical or other investigative procedures, and ill-defined conditions regarding which no diagnosis classifiable elsewhere is recorded.
- Signs and symptoms that point rather definitely to a given diagnosis have been assigned to a category in other chapters of the classification. In general, categories in this chapter include the less well-defined conditions and symptoms that, without the necessary study of the case to establish a final diagnosis, point perhaps equally to two or more diseases or to two or more systems of the body. Practically all categories in the chapter could be designated 'not otherwise specified', 'unknown etiology' or 'transient'. The Alphabetical Index should be consulted to determine which symptoms and signs are to be allocated here and which to other chapters. The residual subcategories, numbered .8, are generally provided for other relevant symptoms that cannot be allocated elsewhere in the classification.
- The conditions and signs or symptoms included in categories R00-R94 consist of:
- (a) cases for which no more specific diagnosis can be made even after all the facts bearing on the case have been investigated;
- (b) signs or symptoms existing at the time of initial encounter that proved to be transient and whose causes could not be determined;
- (c) provisional diagnosis in a patient who failed to return for further investigation or care;
- (d) cases referred elsewhere for investigation or treatment before the diagnosis was made;
- (e) cases in which a more precise diagnosis was not available for any other reason;
- (f) certain symptoms, for which supplementary information is provided, that represent important problems in medical care in their own right.
Type 2 Excludes
- abnormal findings on antenatal screening of mother (O28.-)
- certain conditions originating in the perinatal period (P04-P96)
- signs and symptoms classified in the body system chapters
- signs and symptoms of breast (N63, N64.5)
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
R00
ICD-10-CM Diagnosis Code R00
Abnormalities of heart beat
Type 1 Excludes
- abnormalities originating in the perinatal period (P29.1-)
Type 2 Excludes
- specified arrhythmias (I47-I49)
Abnormalities of heart beat

Approximate Synonyms

Inappropriate sinus tachycardia
Inappropriate sinus tachycardia (rapid heart beat)
Sinus tachycardia
Sinus tachycardia (fast heart beat)
Tachycardia

Clinical Information

Abnormally rapid heartbeat, usually with a heart rate above 100 beats per minute for adults. Tachycardia accompanied by disturbance in the cardiac depolarization (cardiac arrhythmia) is called tachyarrhythmia.
An abnormally rapid heartbeat, usually applied to a heart rate above 100 per minute.
Excessive rapidity in the action of the heart.
Rapid beating of the heart, usually defined as greater than 100 beats per minute.
Tachycardia; an abnormally rapid heartbeat, usually applied to a heart rate above 100 per minute.

ICD-10-CM R00.0 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):

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
793 Full term neonate with major problems

Convert R00.0 to ICD-9-CM

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change

Code annotations containing back-references to R00.0:

Type 1 Excludes: I47
, I47
, I47

ICD-10-CM Diagnosis Code I47
Paroxysmal tachycardia
Code First
- tachycardia complicating:
- abortion or ectopic or molar pregnancy (O00-O07, O08.8)
- obstetric surgery and procedures (O75.4)
Type 1 Excludes
- tachycardia NOS (R00.0)
- sinoauricular tachycardia NOS (R00.0)
- sinus [sinusal] tachycardia NOS (R00.0)
ICD-10-CM Diagnosis Code I47
Paroxysmal tachycardia
Code First
- tachycardia complicating:
- abortion or ectopic or molar pregnancy (O00-O07, O08.8)
- obstetric surgery and procedures (O75.4)
Type 1 Excludes
- tachycardia NOS (R00.0)
- sinoauricular tachycardia NOS (R00.0)
- sinus [sinusal] tachycardia NOS (R00.0)
ICD-10-CM Diagnosis Code I47
Paroxysmal tachycardia
Code First
- tachycardia complicating:
- abortion or ectopic or molar pregnancy (O00-O07, O08.8)
- obstetric surgery and procedures (O75.4)
Type 1 Excludes
- tachycardia NOS (R00.0)
- sinoauricular tachycardia NOS (R00.0)
- sinus [sinusal] tachycardia NOS (R00.0)

Diagnosis Index entries containing back-references to R00.0:

Fast pulse R00.0
Heart beat
- rapid R00.0
Pulse
- fast R00.0
- rapid R00.0
Rapid
- heart (beat) R00.0
Sinus - see also Fistula
- tachycardia R00.0
Tachycardia R00.0
- sinoauricular NOS R00.0
- sinus [sinusal] NOS R00.0

ICD-10-CM Codes Adjacent To R00.0

Q98.7 Male with sex chromosome mosaicism

Q98.8 Other specified sex chromosome abnormalities, male phenotype

Q98.9 Sex chromosome abnormality, male phenotype, unspecified

Q99 Other chromosome abnormalities, not elsewhere classified

Q99.0 Chimera 46, XX/46, XY

Q99.1 46, XX true hermaphrodite

Q99.2 Fragile X chromosome

Q99.8 Other specified chromosome abnormalities

Q99.9 Chromosomal abnormality, unspecified

R00 Abnormalities of heart beat

R00.0 Tachycardia, unspecified

R00.1 Bradycardia, unspecified

R00.2 Palpitations

R00.8 Other abnormalities of heart beat

R00.9 Unspecified abnormalities of heart beat

R01 Cardiac murmurs and other cardiac sounds

R01.0 Benign and innocent cardiac murmurs

R01.1 Cardiac murmur, unspecified

R01.2 Other cardiac sounds

R03 Abnormal blood-pressure reading, without diagnosis

R03.0 Elevated blood-pressure reading, without diagnosis of hypertension

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

2019 ICD-10-CM Diagnosis Code R00.0

Tachycardia, unspecified

Neonatal tachycardia

Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified

Abnormalities of heart beat

Paroxysmal tachycardia

Paroxysmal tachycardia

Paroxysmal tachycardia