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R12

Billable

Heartburn

R12 is the ICD-10-CM code for Heartburn. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
R00-R99
Edition
FY2026

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

What this means — in plain language

MedlinePlus · NIH

Heartburn is a painful burning feeling in your chest or throat. It happens when stomach acid backs up into your esophagus, the tube that carries food from your mouth to your stomach. If you have heartburn more than twice a week, you may have GERD . But you can have GERD without having heartburn. Pregnancy, certain foods, alcohol, and some medications can bring on heartburn. Treating heartburn is important because…

Read more about Heartburn at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Excludes1 — not coded here

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

Frequently asked questions

What is ICD-10 code R12?
R12 is the ICD-10-CM code for "Heartburn". It falls under R00-R99 Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.
Is R12 a billable code?
Yes — R12 is a billable, specific ICD-10-CM code valid for reimbursement.
What is excluded from R12?
Excludes1 (not coded here): dyspepsia NOS (R10.13); functional dyspepsia (K30).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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