R12 Heartburn

Billable ICD-10-CM code, FY2026.

Excludes1 (never code together)

• dyspepsia NOS (R10.13)
• functional dyspepsia (K30)

Applies from R12 Heartburn

Excludes1 (never code together)

• dyspepsia NOS (R10.13)
• functional dyspepsia (K30)

MS-DRG index

Defines the logic of DRG(s) 391-392 in MDC 06.

Approximate ICD-9-CM (GEMs)

• 787.1 Heartburn

Code annotations containing back-references to R12

Back-references to R12

• Type 1 Excludes: K30 Functional dyspepsia ("heartburn (R12)")

Back-references to R12

• Type 1 Excludes: K30 Functional dyspepsia ("heartburn (R12)")

Diagnosis Index entries for R12

• Brash (water)
• Heartburn
• Pyrosis
• Waterbrash

Nearby codes

• R12 Heartburn (this code)