R09.01

Asphyxia

Billable code

This code does not map to a risk-adjusting HCC in the loaded models.

Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

Inherited from R09.0Asphyxia and hypoxemia

Excludes 1

asphyxia due to carbon monoxide (T58.-) asphyxia due to foreign body in respiratory tract (T17.-) birth (intrauterine) asphyxia (P84) hyperventilation (R06.4) traumatic asphyxia (T71.-)

Excludes 2

hypercapnia (R06.89)

Inherited from R09Oth symptoms and signs involving the circ and resp sys

Excludes 1

acute respiratory distress syndrome (J80) respiratory arrest of newborn (P28.81) respiratory distress syndrome of newborn (P22.0) respiratory failure (J96.-) respiratory failure of newborn (P28.5)

Inherited from chapter 18Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified

Excludes 2

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)

Official Guidelines for R09.01

FY 2026 ›

I.C.18Chapter-specific guidanceChapter 18: Symptoms, signs, and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)

Subsections

Sections that reference R09.01

Sections whose FY 2026 text names R09.01, its R09 category, or a range containing it — the chapter guidance above is the authoritative source.

Find R09.01 in the alphabetic index

3 index paths lead to this code