DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

R01 Cardiac murmurs and other cardiac sounds

  • Header · not billable

R01 is not billable. The category heads 3 billable codes in FY2027: the 3 codes directly below it.

Index → code

  • Fremitus, friction, cardiac → R01.2
  • Murmur (cardiac) (heart) (organic) → R01.1
  • Dullness, cardiac (decreased) (increased) → R01.2

Where it sits

  1. Chapter 18 Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
  2. R00-R09 Symptoms and signs involving the circulatory and respiratory systems (R00-R09)
  3. R01 Cardiac murmurs and other cardiac sounds
Billable codes
3
Subdivisions
3
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
14

Codes in R01

  1. R01.0
    Benign and innocent cardiac murmurs
    Billable
    Inclusion terms 1

    Inclusion terms

    • Functional cardiac murmur
  2. R01.1
    Cardiac murmur, unspecified
    Billable
    Inclusion terms 3

    Inclusion terms

    • Cardiac bruit NOS
    • Heart murmur NOS
    • Systolic murmur NOS
  3. R01.2
    Other cardiac sounds
    Billable
    Inclusion terms 2

    Inclusion terms

    • Cardiac dullness, increased or decreased
    • Precordial friction

Sources of each column.

Instructions

At R01

Excludes1

  • cardiac murmurs and sounds originating in the perinatal period (P29.8) P29.8

Notes that also apply

Chapter 18 instructions (Notes 9, Excludes2 4): printed on the chapter 18 page.

Index entries

  • Murmur (cardiac) (heart) (organic) → R01.1
  • Dullness, cardiac (decreased) (increased) → R01.2
  • Fremitus, friction, cardiac → R01.2
  • Murmur (cardiac) (heart) (organic)benign → R01.0
  • Murmur (cardiac) (heart) (organic)functional → R01.0
  • Murmur (cardiac) (heart) (organic)innocent → R01.0
  • Murmur (cardiac) (heart) (organic)nonorganic → R01.0
  • Bruit (arterial)cardiac → R01.1
  • Murmur (cardiac) (heart) (organic)systolic → R01.1
  • Frictionfremitus, cardiac → R01.2
  • Frictionprecordial → R01.2
  • Split, splittingheart sounds → R01.2
  • Abnormal, abnormality, abnormalitiesheartsounds NEC → R01.2
  • Findings, abnormal, inconclusive, without diagnosisheartsounds → R01.2

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