2027 ICD-10-CM Diagnosis Code R07.9Chest pain, unspecified

ICD-10-CM Codes›R00–R99›R00-R09›R07

ICD-10-CM R07.9
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

R07.9 is a billable ICD-10-CM diagnosis code for chest pain, unspecified. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 313. As a symptom code, it should not be used as a principal diagnosis once a related definitive diagnosis has been established. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Nonspecific chest pain.

This medical diagnosis code is frequently used in Family Practice, Internal Medicine, Cardiology, and Pediatrics medical specialties to designate conditions such chest pain.

Code Identity

ICD-10-CM Code
R07.9
Billable Status
Yes — Valid for Submission
Code Describes
Chest pain, unspecified
Short Description
Chest pain, unspecified
Same as the full description in the CMS dataset.
Parent Code
R07
Pain in throat and chest

Code Classification

ChapterR00–R99Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
SectionR00-R09Symptoms and signs involving the circulatory and respiratory systems
CategoryR07Pain in throat and chest
This CodeR07.9Chest pain, unspecified

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acute chest pain
  • Burning chest pain
  • Burning pain
  • Cardiac chest pain
  • Central chest pain
  • Chest pain
  • Chest pain due to pericarditis
  • Chronic chest pain
  • Chronic primary chest pain syndrome
  • Chronic primary visceral pain
  • Crushing chest pain
  • Crushing pain
  • Left sided chest pain
  • Non-cardiac chest pain
  • Parasternal pain
  • Radiating chest pain
  • Squeezing chest pain
  • Upper chest pain

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to R07.9: its own notes plus those printed at R07 and Chapter 18. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From R07 Pain in throat and chest applies to 7 codes

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From R07 Pain in throat and chest applies to 7 codes
From Chapter 18 (R00-R99) Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified applies to 774 codes
  • 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)

Notes

General instructions on how these codes are used.

From Chapter 18 (R00-R99) Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified applies to 774 codes
  • This chapter includes symptoms, signs, abnormal results of clinical or other investigative procedures, and ill-defined conditions regarding which no diagnosis classifiable elsewhere is recorded.
  • Signs and symptoms that point rather definitely to a given diagnosis have been assigned to a category in other chapters of the classification. In general, categories in this chapter include the less well-defined conditions and symptoms that, without the necessary study of the case to establish a final diagnosis, point perhaps equally to two or more diseases or to two or more systems of the body. Practically all categories in the chapter could be designated 'not otherwise specified', 'unknown etiology' or 'transient'. The Alphabetical Index should be consulted to determine which symptoms and signs are to be allocated here and which to other chapters. The residual subcategories, numbered .8, are generally provided for other relevant symptoms that cannot be allocated elsewhere in the classification.
  • The conditions and signs or symptoms included in categories R00-R94 consist of:
  • (a) cases for which no more specific diagnosis can be made even after all the facts bearing on the case have been investigated;
  • (b) signs or symptoms existing at the time of initial encounter that proved to be transient and whose causes could not be determined;
  • (c) provisional diagnosis in a patient who failed to return for further investigation or care;
  • (d) cases referred elsewhere for investigation or treatment before the diagnosis was made;
  • (e) cases in which a more precise diagnosis was not available for any other reason;
  • (f) certain symptoms, for which supplementary information is provided, that represent important problems in medical care in their own right.

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name R07.9, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming R07.9: they are not reported together with it, unless the two conditions are unrelated.

  • R52 Pain, unspecified
    chest pain (R07.1-R07.9) names R07.1-R07.9, which includes this code

Excludes2 1

These codes carry an Excludes2 note naming R07.9: its condition is not part of those codes, and both may be reported when the patient has both.

  • G89 Pain, not elsewhere classified
    chest pain (R07.1-R07.9) names R07.1-R07.9, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR CIR012
Nonspecific chest pain
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Chest Pain

    pressure, burning, or numbness in the chest.

Patient EducationClinical

Chest Pain

Having a pain in your chest can be scary. It does not always mean that you are having a heart attack. There can be many other causes, including:

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert R07.9 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
786.50 Chest pain NOS
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About R07.9Overview

What is the ICD-10 code for chest pain, unspecified?

The ICD-10-CM code for chest pain, unspecified is R07.9 (sometimes written as R079). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is R07.9 (Pain in throat and chest) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report chest pain, unspecified on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does R07.9 group to?

When chest pain, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 313 (chest Pain), which carries a relative weight of 0.7113. Higher weights mean higher Medicare reimbursement.

Can R07.9 be a principal diagnosis?

Use it with care. This is a symptom code, so once a definitive diagnosis explaining the chest pain, unspecified is established, that condition takes the principal position instead.

Can R07.9 be reported with B33.0?

Not as a rule. The Excludes1 note at R07, which applies to R07.9, lists "epidemic myalgia (B33.0)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).