2027 ICD-10-CM Diagnosis Code R04.2Hemoptysis
ICD-10-CM Codes›R00–R99›R00-R09›R04
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Not Chronic
R04.2 is a billable ICD-10-CM diagnosis code for hemoptysis. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 204. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 6 closely related codes. As a symptom code, it should not be used as a principal diagnosis once a related definitive diagnosis has been established. Coders also document this condition as blood streaked sputum. 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.
- Blood streaked sputum
- Bloodstained sputum
- Frank blood in sputum
- Hemoptysis
- Sputum: contains blood
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to R04.2: 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.
- Blood-stained sputum
- Cough with hemorrhage
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.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name R04.2, its category, or a range that includes it.
Excludes1 2
These codes carry an Excludes1 note naming R04.2: they are not reported together with it, unless the two conditions are unrelated.
Index to Diseases and InjuriesGuidance
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Hemoptysis
expectoration or spitting of blood originating from any part of the respiratory tract, usually from hemorrhage in the lung parenchyma (pulmonary alveoli) and the bronchial arteries.
Patient EducationClinical
Cough
Coughing is a reflex that keeps your throat and airways clear. Although it can be annoying, coughing helps your body heal or protect itself. Coughs can be either acute or chronic. Acute coughs begin suddenly and usually last no more than 2 to 3 weeks. Acute coughs are the kind you most often get with a cold, flu, or acute bronchitis.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert R04.2 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About R04.2Overview
What is the ICD-10 code for hemoptysis?
The ICD-10-CM code for hemoptysis is R04.2 (sometimes written as R042). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is R04.2 (Hemorrhage from respiratory passages) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report hemoptysis on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does R04.2 group to?
When hemoptysis is the principal diagnosis on an inpatient stay, it groups to MS-DRG 204 (respiratory Signs and Symptoms), which carries a relative weight of 0.8208. Higher weights mean higher Medicare reimbursement.
Is R04.2 a CC or MCC?
CMS lists R04.2 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 6 closely related codes in its exclusion list.
Can R04.2 be a principal diagnosis?
Use it with care. This is a symptom code, so once a definitive diagnosis explaining the hemoptysis is established, that condition takes the principal position instead.
