R12

Billable

ChapterR00–R99

Rankcategory

Official Description

Heartburn

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Billable/specific code (valid for reimbursement).
•Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings (R00-R99).

CH18 Parent Instructions

Excludes2(Not included here)

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)

R10-R19 Parent Instructions

Excludes2(Not included here)

congenital or infantile pylorospasm (Q40.0)
gastrointestinal hemorrhage (K92.0-K92.2)
intestinal obstruction (K56.-)
newborn gastrointestinal hemorrhage (P54.0-P54.3)
newborn intestinal obstruction (P76.-)
pylorospasm (K31.3)
signs and symptoms involving the urinary system (R30-R39)
symptoms referable to female genital organs (N94.-)
symptoms referable to male genital organs (N48-N50)

Instructional Notes

Excludes1(Not coded here)

functional dyspepsia (K30)

Excludes2(Not included here)

dyspepsia NOS (R10.13)

Clinical Hierarchy

CH18Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)

R10-R19Symptoms and signs involving the digestive system and abdomen (R10-R19)

R12Heartburn

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to R12:

blockR10-R19

Symptoms and signs involving the digestive system and abdomen (R10-R19)

View context instructions

chapterCH18

Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to R12. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

4 raw paths

Brash (water)1 unique routes

Direct index entry→R12

Heartburn1 unique routes

Direct index entry→R12

Pyrosis1 unique routes

Direct index entry→R12

Waterbrash1 unique routes

Direct index entry→R12