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R00.0

Billable

Tachycardia, unspecified

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A condition where the heart beats faster than normal without a specified cause.

Coding Tips

  • Use only when the cause of rapid heartbeat is not identified or documented
  • If a specific cause is known (fever, anxiety, thyroid disease), code the underlying condition instead

Excludes 1 — Do NOT code together

  • inappropriate sinus tachycardia, so stated (I47.11)
  • neonatal tachycardia (P29.11)
  • paroxysmal tachycardia (I47.-)

Code Hierarchy

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