The ICD-10 code for SOB is R06.02, Shortness of breath, when the provider documents shortness of breath or SOB as the symptom being coded. ICD-10-CM also includes separate codes for unspecified dyspnea, orthopnea, acute respiratory distress, and other forms of dyspnea.
The most important distinction is between R06.02 for shortness of breath and R06.00 for unspecified dyspnea. Although these terms may be used similarly in clinical conversations, ICD-10-CM assigns them separate codes. The provider’s documentation should guide code selection.
For accurate coding, review the complete encounter and determine whether the provider documented an underlying condition that affects the final diagnosis coding.
What Is the ICD-10 Code for SOB?
The primary ICD-10-CM code for shortness of breath (SOB) is:
R06.02, Shortness of breath
Use R06.02 when the provider documents shortness of breath as the condition or symptom being coded and no more definitive diagnosis changes the coding.
ICD-10 Code for SOB Quick Reference
| ICD-10-CM Code | Description | When It May Apply |
| R06.00 | Dyspnea, unspecified | Provider documents unspecified dyspnea |
| R06.01 | Orthopnea | Provider documents orthopnea |
| R06.02 | Shortness of breath | Provider documents shortness of breath or SOB |
| R06.03 | Acute respiratory distress | Provider documents acute respiratory distress |
| R06.09 | Other forms of dyspnea | Provider documents another specified form of dyspnea |
The R06 category contains separate codes for these respiratory symptoms, so coders should select the code that most closely matches the provider’s documentation.
Is R06.02 the Same as Unspecified Dyspnea?
No. R06.02 and R06.00 are separate ICD-10-CM codes. This distinction is important because “shortness of breath” and “dyspnea, unspecified” can sound interchangeable in everyday clinical language. For coding purposes, however, the documented terminology matters.
R06.02 vs. R06.00
| Provider Documentation | ICD-10-CM Code |
| Shortness of breath | R06.02 |
| SOB | R06.02 |
| Dyspnea, unspecified | R06.00 |
| Orthopnea | R06.01 |
| Acute respiratory distress | R06.03 |
| Other specified dyspnea | R06.09 |
If the provider documents “shortness of breath,” the corresponding code is R06.02. If the provider documents “dyspnea, unspecified,” the corresponding code is R06.00. A coder should not change R06.02 to R06.00 simply because the shortness of breath has no known underlying cause.
How to Code Shortness of Breath Correctly
Accurate coding starts with the provider’s documentation and the complete medical record.
Step 1: Review the Exact Provider Documentation
Look for the terminology used in the assessment, diagnosis, and other relevant provider documentation. For example:
Assessment: Shortness of breath.
This supports R06.02 when symptom coding is appropriate.
Compare that with:
Assessment: Dyspnea, unspecified.
This supports R06.00. The distinction comes from the documented diagnosis, not from the coder’s personal interpretation of the terms.
Step 2: Determine Whether a More Definitive Diagnosis Was Established
Shortness of breath can occur with many underlying conditions. A patient may initially present with SOB and later receive a definitive diagnosis during the encounter.For example, the record may document:
Chief complaint: Shortness of breath.
Final assessment: Pneumonia.
The coder should review the complete encounter and apply the applicable ICD-10-CM guidelines rather than automatically reporting R06.02 as the primary diagnosis.
Symptom codes may be appropriate when a definitive diagnosis has not been established. The FY 2026 ICD-10-CM Official Guidelines include R06.02, Shortness of breath as an example of a symptom code.
Step 3: Do Not Infer an Underlying Disease
A coder should not independently diagnose a condition based only on a patient’s shortness of breath.
For example, SOB alone does not justify assigning:
- Asthma
- Pneumonia
- Chronic obstructive pulmonary disease (COPD)
- Heart failure
- Respiratory failure
The underlying condition must be supported by the provider’s documentation and applicable coding guidelines.
What Is the Difference Between SOB and Dyspnea?
Shortness of breath and dyspnea are closely related clinical terms, but ICD-10-CM provides separate codes for certain documented terms.
- R06.02 specifically identifies shortness of breath.
- R06.00 identifies dyspnea, unspecified.
This does not mean that every clinical use of the word “dyspnea” must be coded R06.00. The provider’s complete documentation should be reviewed to determine whether a more specific form of dyspnea, such as orthopnea, is documented.
Example
Patient reports shortness of breath with exertion.
When the provider documents the symptom as shortness of breath, R06.02 may be appropriate. If the provider’s assessment states:
Dyspnea, unspecified.
R06.00 is the corresponding code. The key is to code from the provider’s documented diagnosis rather than translating one term into another without support.
Related Dyspnea and Breathing Codes
R06.02 is part of a broader group of respiratory symptom codes.
R06.00: Dyspnea, Unspecified
R06.00 is used for dyspnea, unspecified. This code should not automatically replace R06.02 when the provider specifically documents shortness of breath.
R06.01: Orthopnea
R06.01 identifies orthopnea, which refers to difficulty breathing when lying flat. If the provider documents orthopnea, use the more specific code when appropriate rather than automatically reporting R06.02. A coder should not independently diagnose orthopnea based solely on the patient’s description. The diagnosis should be supported by provider documentation.
R06.03: Acute Respiratory Distress
R06.03 identifies acute respiratory distress. Do not assign R06.03 simply because the patient reports severe shortness of breath. Acute respiratory distress is a separate documented condition and should be supported by the provider’s assessment.
R06.09: Other Forms of Dyspnea
R06.09 identifies other forms of dyspnea that are specified but do not correspond to another listed R06 code. When considering R06.09, review the provider’s wording and the applicable ICD-10-CM Index and Tabular List instructions.
ICD 10 Code for SOB Coding Examples
Example 1: Shortness of Breath
Provider documentation:
Patient reports shortness of breath during exertion.
ICD-10-CM code: R06.02, Shortness of breath
The provider documented shortness of breath, supporting the specific R06.02 code when symptom coding is appropriate.
Example 2: SOB
Provider documentation:
Patient presents with SOB.
ICD-10-CM code: R06.02
“SOB” is commonly used as an abbreviation for shortness of breath. When the provider uses SOB to document the symptom, R06.02 corresponds to shortness of breath.
Example 3: Unspecified Dyspnea
Provider documentation:
Assessment: Dyspnea, unspecified.
ICD-10-CM code: R06.00
The provider specifically documented unspecified dyspnea.
Example 4: Orthopnea
Provider documentation:
Assessment: Orthopnea.
ICD-10-CM code: R06.01
Orthopnea has its own specific code and should not automatically be reported as general shortness of breath.
Example 5: Acute Respiratory Distress
Provider documentation:
Assessment: Acute respiratory distress.
ICD-10-CM code: R06.03
The documented condition is acute respiratory distress, not simply shortness of breath.
Example 6: SOB With an Underlying Diagnosis
Provider documentation:
Patient presents with shortness of breath.
Final assessment: Pneumonia.
The coder should review the complete encounter and applicable coding guidelines to determine the reportable diagnosis or diagnoses. Do not automatically assign R06.02 without considering the final documented diagnosis.
SOB and Underlying Diagnoses
Shortness of breath is often a symptom rather than a final diagnosis. It may occur with respiratory, cardiac, infectious, or other medical conditions.
When No Definitive Diagnosis Is Established
If the provider documents shortness of breath and does not establish a definitive underlying diagnosis, a symptom code such as R06.02 may be appropriate. The FY 2026 ICD-10-CM Official Guidelines explain that signs and symptoms may be reported when a definitive diagnosis has not been established.
When a Definitive Diagnosis Is Established
When the provider establishes an underlying condition, review the complete encounter and applicable coding guidelines. Do not assume that R06.02 must always be reported in addition to the underlying condition. Whether a symptom code is separately reportable depends on the coding circumstances and applicable guidelines.
Symptom vs. Definitive Diagnosis
| Documentation Situation | Coding Consideration |
| Shortness of breath documented with no definitive diagnosis | R06.02 may apply |
| Dyspnea, unspecified documented | R06.00 may apply |
| Orthopnea documented | R06.01 may apply |
| Acute respiratory distress documented | R06.03 may apply |
| Underlying condition established | Review the complete encounter and applicable guidelines |
| Disease suspected but not established | Do not independently code it as confirmed |
Common ICD-10 Code for SOB Coding Mistakes
Using R06.00 for Every SOB Case
R06.00 represents unspecified dyspnea. It should not automatically replace R06.02 when the provider specifically documents shortness of breath.
Using R06.02 for Every Breathing Problem
R06.02 is specifically for shortness of breath. Other documented conditions, such as orthopnea or acute respiratory distress, have separate codes.
Treating SOB as Respiratory Failure
Shortness of breath and respiratory failure are not interchangeable diagnoses. A coder should never infer respiratory failure solely from documentation of SOB. Respiratory failure requires appropriate provider documentation and coding support.
Coding a Suspected Disease as Confirmed
Do not assign asthma, pneumonia, COPD, heart failure, or another disease simply because it could explain the patient’s shortness of breath. Code the condition that is supported by the provider’s documentation and applicable guidelines.
Ignoring the Final Assessment
The initial complaint may say “SOB,” while the provider’s final assessment identifies another condition. Review the complete encounter before finalizing the diagnosis codes.
Changing R06.02 to R06.00 Without Documentation Support
Do not assume that shortness of breath becomes unspecified dyspnea simply because its cause is unknown. The documented terminology and coding circumstances should determine the appropriate code.
ICD-10 Code for SOB: A Quick Reference
| Coding Question | Answer |
| ICD 10 code for SOB | R06.02 |
| Shortness of breath | R06.02 |
| Unspecified dyspnea | R06.00 |
| Orthopnea | R06.01 |
| Acute respiratory distress | R06.03 |
| Other forms of dyspnea | R06.09 |
| Should SOB automatically be coded as respiratory failure? | No |
| Can a coder infer a disease from SOB alone? | No |
| Main coding consideration | Provider documentation and complete encounter |
Conclusion
The ICD-10 code for SOB is R06.02, Shortness of breath. The most important distinction for coders is between R06.02 and R06.00. R06.02 identifies shortness of breath, while R06.00 identifies unspecified dyspnea.
Other R06 codes cover conditions such as orthopnea (R06.01), acute respiratory distress (R06.03), and other forms of dyspnea (R06.09).
For accurate medical coding, follow the provider’s documentation, review the complete encounter, and determine whether a definitive underlying diagnosis was established. Do not infer a disease or substitute an unspecified dyspnea code when the documentation supports a more specific diagnosis.
FAQs
What is the ICD-10 code for SOB?
The ICD-10-CM code for shortness of breath is R06.02. When the provider documents SOB or shortness of breath as the symptom being coded, R06.02 is the corresponding code.
What is the ICD-10 code for SOB, unspecified?
If the provider documents SOB or shortness of breath, the corresponding code is R06.02. If the provider specifically documents dyspnea, unspecified, the code is R06.00.
Is R06.02 a billable ICD-10-CM code?
Yes. R06.02, Shortness of breath, is a specific ICD-10-CM diagnosis code. Always verify the code set applicable to the date of service and follow payer-specific requirements.
Is SOB the same as dyspnea?
SOB and dyspnea are closely related terms, but ICD-10-CM distinguishes shortness of breath (R06.02) from dyspnea, unspecified (R06.00). Code selection should follow the provider’s documentation.
Should shortness of breath be coded when another diagnosis is established?
Not automatically. Review the complete encounter and applicable ICD-10-CM guidelines to determine whether the symptom is separately reportable when an underlying diagnosis has been established.
