Bradycardia ICD-10-CM Codes

Read this short guide to ICD-10 codes used for bradycardia. This guide includes related codes, billability, clinical information, synonyms, and more.

By Matt Olivares on Aug 8, 2025.

Fact Checked by Karina Jimenea.

What ICD-10-CM codes are used for bradycardia?

Bradycardia is when the patient has a heart rate of below 60 BPM which is slower than normal.

Here are bracycardia ICD codes:

R00.1 - Bradycardia, unspecified: This is meant to be used if a patient is confirmed to have bradycardia. This can be used for bradycardia in general.
P29.12 - Neonatal bradycardia: This is meant to be used if the patient is a neonate and is confirmed to have bradycardia.
I49.5 - Sick sinus syndrome: This is meant to be used if a patient is confirmed to have the heart rhythm disorder known as sick sinus syndrome, which affects the sinus node's ability to initiate heartbeats.
P03.811 - Newborn affected by abnormality in fetal (intrauterine) heart rate or rhythm during labor: This is meant to be used if a newborn has heart rhythm irregularities during labor of the mother.

All the mentioned bradycardia ICD codes and ICD codes associated with bradycardia are billable.

Bradycardia, a type of arrhythmia, happens when the heart beats less than 60 beats per minute. It's a circulatory system problem.
Depending on the patient, they may not experience any symptoms or may experience any of the following: fainting, disturbed sleeping, fatigue/weakness, and dizziness.
There are several causes of bradycardia. Among them are reactions to a medication, age, heart conditions, sick sinus syndrome, heart block, intracranial pressure, heart attack, hypothyroidism, hypoxia, hypothermia, and obstructive sleep apnea.
Bradycardia can also be caused by taking certain drugs, so if that's the case, healthcare providers will seek to identify drugs used by their patient to determine the specific cause.
A practitioner may check the patient's heart with an ECG or EKG to diagnose bradycardia. The practitioner may also ask the patient to wear a portable ECG, like a Holter monitor, event monitor, or implantable monitor, to keep an eye on one's BPM outside the hospital or clinic.
Treatment may vary depending on the cause however, common ones include medication and a pacemaker. If it's happening during labor, obstetric surgery might be important.

You can use a bradycardia ICD code when you’ve confirmed the diagnosis by checking the patient’s ECG.

The two bradycardia ICD Codes and the associated ICD codes are all billable

Common treatments for bradycardia include medication and/or a pacemaker.

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