DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Block · Chapter 18

R00-R09 Symptoms and signs involving the circulatory and respiratory systems (R00-R09)

Block R00-R09 groups 8 categories with 58 billable codes in FY2027.

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)

Neighbouring blocks

Categories
8
Billable codes
58
CC codes
6
MCC codes
1
HCC V28 codes
1
New FY2027
0

Categories in R00-R09

  • R00

    Abnormalities of heart beat

    Trigeminy → R00.8

    • 5 billable codes
  • R01

    Cardiac murmurs and other cardiac sounds

    Fremitus, friction, cardiac → R01.2

    • 3 billable codes
  • R03

    Abnormal blood-pressure reading, without diagnosis

    Borderlinehypertension → R03.0

    • 2 billable codes
  • R04

    Hemorrhage from respiratory passages

    Nosebleed → R04.0

    • 6 billable codes
    • 4 CC
  • R05

    Cough

    Cough (affected) (epidemic) (nervous) → R05.9

    • 6 billable codes
  • R06

    Abnormalities of breathing

    Sighing → R06.89

    • 17 billable codes
    • 1 CC
  • R07

    Pain in throat and chest

    Pleuralgia → R07.81

    • 7 billable codes
  • R09

    Other symptoms and signs involving the circulatory and respiratory system

    Rales → R09.89

    • 12 billable codes
    • 1 CC
    • 1 MCC
    • 1 with HCC

Index main terms

  • Pain(s) → R07 (20 entries)
  • Cough (affected) (epidemic) (nervous) → R05 (11 entries)
  • Hemorrhage, hemorrhagic (concealed) → R04 (11 entries)
  • Abnormal, abnormality, abnormalities → R00, R01, R03, R06, R09 (10 entries)
  • Murmur (cardiac) (heart) (organic) → R01 (6 entries)
  • Distress → R06 (5 entries)
  • Dyspnea (nocturnal) (paroxysmal) → R06 (5 entries)
  • Heart beat → R00 (5 entries)
  • Pulse → R00, R09 (5 entries)
  • Sensation → R09 (5 entries)
  • Congestion, congestive → R09 (4 entries)
  • Symptoms NEC → R09 (4 entries)
  • Blood → R03 (3 entries)
  • Breath → R06 (3 entries)
  • Friction → R01, R09 (3 entries)

+95 more main terms; the search box finds them by word.

Block instructions

Notes that also apply

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