2027 ICD-10-CM Diagnosis Code R04.0Epistaxis
ICD-10-CM Codes›R00–R99›R00-R09›R04
- Billable — Valid for Submission
- Not Chronic
R04.0 is a billable ICD-10-CM diagnosis code for epistaxis. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 150 through 151. 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 Respiratory signs and symptoms.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Anterior epistaxis
- Bleeding from nose
- Blood in nasal cavity
- Contents of anterior nasal cavity - finding
- Evidence of recent epistaxis
- Hemorrhagic nasal discharge
- Injury of head with rhinorrhagia
- Maternal perinatal epistaxis
- Posterior epistaxis
- Post-surgical epistaxis
- Recurrent bleeding of nose
- Traumatic epistaxis
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to R04.0: its own notes plus those printed at Chapter 18. A note printed at a category, block or chapter applies to every code under it.
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Hemorrhage from nose
- Nosebleed
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.
Notes
General instructions on how these codes are used.
- 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.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Epistaxis (multiple) R04.0
Hemorrhage, hemorrhagic (concealed) R58
nasal turbinate R04.0
nose R04.0
postnasal R04.0
Nosebleed R04.0
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Epistaxis
bleeding from the nose.
Patient EducationClinical
Nose Injuries and Disorders
Your nose is important to your health. It filters the air you breathe, removing dust, germs, and irritants. It warms and moistens the air to keep your lungs and tubes that lead to them from drying out. Your nose also contains the nerve cells that help your sense of smell.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert R04.0 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About R04.0Overview
What is the ICD-10 code for epistaxis?
The ICD-10-CM code for epistaxis is R04.0 (sometimes written as R040). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is R04.0 (Hemorrhage from respiratory passages) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report epistaxis on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does R04.0 group to?
When epistaxis is the principal diagnosis on an inpatient stay, it groups to MS-DRG 151, 150, with relative weights from 0.7612 to 1.4496 depending on complications. Higher weights mean higher Medicare reimbursement.
Can R04.0 be a principal diagnosis?
Use it with care. This is a symptom code, so once a definitive diagnosis explaining the epistaxis is established, that condition takes the principal position instead.
What is the ICD-9 equivalent of R04.0?
Under the General Equivalence Mappings, epistaxis converts to ICD-9-CM 784.7 (epistaxis). The mapping is a direct match.
