The thoracic pain ICD-10 code is M54.6, Pain in thoracic spine. It is used when the provider documents pain specifically involving the thoracic spine and the coding circumstances support reporting a symptom diagnosis.
Thoracic pain should not automatically be coded as M54.6 simply because a patient reports upper or middle back pain. The provider’s documentation must establish the anatomical location, and the record should be reviewed for a more specific underlying condition.
This guide explains M54.6, related thoracic spine codes, the important Excludes1 instruction, documentation requirements, coding scenarios, and common mistakes.
Thoracic Pain ICD-10: A Quick Answer
| Coding Item | ICD-10-CM Code |
| Thoracic pain | M54.6 |
| Pain in thoracic spine | M54.6 |
| Thoracic back pain | M54.6 when documentation supports pain in the thoracic spine |
| Thoracic spine pain | M54.6 |
| Thoracic radiculopathy | M54.14 |
| Dorsalgia, unspecified | M54.9 |
| Thoracic pain due to intervertebral disc disorder | Review applicable M51.- code |
M54.6 is the specific ICD-10-CM code for Pain in the thoracic spine.
What Is M54.6?
M54.6 is the ICD-10-CM code for Pain in the thoracic spine. It falls under category M54, Dorsalgia, which contains codes for different types and locations of back pain.
M54.6 Code Details
| Detail | Information |
| ICD-10-CM code | M54.6 |
| Description | Pain in thoracic spine |
| Category | M54, Dorsalgia |
| Anatomical region | Thoracic spine |
| Code type | Specific diagnosis code |
| Primary coding consideration | Provider documentation and anatomical specificity |
The key feature of M54.6 is location. The documentation should support pain involving the thoracic spine rather than simply stating that the patient has back pain.
When Does M54.6 Apply?
M54.6 may be appropriate when the provider documents pain in the thoracic spine and no more specific diagnosis changes the coding approach.
Examples of documentation that may support M54.6 include:
- Pain in thoracic spine
- Thoracic spine pain
- Thoracic back pain, when the documentation clearly identifies the thoracic region
- Pain localized to the thoracic spine
What About “Upper Back Pain”?
Do not automatically assume that upper back pain means thoracic spine pain. The term may be clinically associated with the thoracic region, but coders should rely on the provider’s documentation rather than independently assigning an anatomical location.
If the record only states: Back pain
and does not identify the region, M54.6 should not be assigned solely because thoracic pain is possible.
Thoracic Pain vs. Other Back Pain Codes
The location and nature of the documented condition can change the appropriate code.
| Provider Documentation | Coding Direction |
| Pain in thoracic spine | M54.6 |
| Thoracic spine pain | M54.6 |
| Back pain, location not specified | Consider M54.9 based on documentation |
| Thoracic radiculopathy | M54.14 |
| Cervical pain | Review the applicable cervicalgia code |
| Low back pain | Review the applicable low back pain code |
| Thoracic pain due to intervertebral disc disorder | Review applicable M51.- code |
This is why a coder should not select M54.6 based only on the general phrase “back pain.”
Thoracic Pain and the M54.6 Excludes1 Instruction
The Excludes1 instruction associated with M54.6 is an important part of accurate coding. M54.6 has an Excludes1 instruction for:
Pain in thoracic spine due to intervertebral disc disorder (M51.-)
When the documentation establishes that thoracic spine pain is due to an intervertebral disc disorder, the coder should not report M54.6 for that condition. The applicable M51.- diagnosis should be reviewed instead.
Why the Excludes1 Note Matters
Consider these two examples:
| Documentation | Coding Consideration |
| “Pain in thoracic spine” | M54.6 may apply |
| “Thoracic spine pain due to documented intervertebral disc disorder” | Review applicable M51.- code |
The second example contains additional diagnostic information that changes the coding pathway. This is why finding a code in a code search tool is not enough. The coder should also review the Tabular List and its instructional notes before finalizing the diagnosis code.
M54.6 vs. Thoracic Radiculopathy
Thoracic pain and thoracic radiculopathy are not the same diagnosis.
- M54.6 identifies pain in the thoracic spine.
- M54.14 identifies radiculopathy, thoracic region.
If the provider documents thoracic radiculopathy.
The coder should review M54.14 rather than automatically assigning M54.6. The more specific documented diagnosis should guide code selection.
Other Related Thoracic and Back Pain Codes
Several related conditions can appear in records involving thoracic pain.
M54.14: Radiculopathy, Thoracic Region
M54.14 is used for radiculopathy of the thoracic region. Do not assign this code simply because a patient reports thoracic pain. Radiculopathy should be supported by the provider’s documentation.
M54.9: Dorsalgia, Unspecified
M54.9 identifies dorsalgia, unspecified. It may be considered when the documentation describes back pain or dorsalgia without sufficient anatomical specificity for a more specific code.
M47.814: Spondylosis Without Myelopathy or Radiculopathy, Thoracic Region
Thoracic spondylosis represents a more specific spinal diagnosis than a general pain symptom. When the provider documents thoracic spondylosis, review the applicable spondylosis code rather than automatically assigning M54.6.
M51.-: Intervertebral Disc Disorders
Intervertebral disc disorders can affect the thoracic region and require review of the applicable M51.- code. When thoracic spine pain is documented as being due to an intervertebral disc disorder, the M54.6 Excludes1 instruction becomes particularly important.
How to Code Thoracic Pain Step by Step
Step 1. Identify the Anatomical Location
First, determine whether the provider identifies the pain as involving the thoracic spine. Look for terms such as:
- Thoracic spine pain
- Pain in thoracic spine
- Thoracic back pain
- Thoracic region
Step 2. Review the Provider’s Assessment
The chief complaint may not represent the final diagnosis. For example:
Chief complaint: Back pain
Assessment: Pain in thoracic spine
The assessment provides the more specific information needed to evaluate M54.6.
Step 3. Look for a More Specific Diagnosis
Check whether the provider documents a condition such as:
- Thoracic radiculopathy
- Thoracic spondylosis
- Intervertebral disc disorder
- Spinal injury
- Other specific spinal pathology
Step 4. Check the Tabular List
After locating M54.6, review the Tabular List for:
- Excludes1 instructions
- Excludes2 instructions
- Other applicable notes
- Related coding instructions
Step 5. Verify the Code for the Date of Service
ICD-10-CM code sets are updated annually. Always verify that the code is valid for the applicable date of service and follow payer-specific requirements.
Thoracic Pain ICD-10 Coding Examples
Example 1: Provider Documents Thoracic Spine Pain
Documentation: Pain in thoracic spine.
ICD-10-CM: M54.6
The provider directly documents the condition represented by M54.6.
Example 2: Thoracic Back Pain
Documentation: Thoracic back pain.
Coding consideration: M54.6 may apply when the documentation establishes that the pain involves the thoracic spine.
Example 3: Unspecified Back Pain
Documentation: Patient reports back pain.
Coding consideration: Do not automatically assign M54.6. Review the record for additional documentation. If the condition remains unspecified, M54.9 may be applicable based on the documented diagnosis and coding guidelines.
Example 4: Thoracic Radiculopathy
Documentation: Thoracic radiculopathy.
ICD-10-CM: M54.14
The provider documented radiculopathy of the thoracic region, which has a more specific code than general thoracic spine pain.
Example 5: Thoracic Pain Due to Disc Disorder
Documentation: Thoracic spine pain due to documented intervertebral disc disorder.
Coding consideration: Review the applicable M51.- code.
The M54.6 Excludes1 instruction must be considered because the documentation establishes that the thoracic spine pain is due to an intervertebral disc disorder.
Example 6: Upper Back Pain Without Specific Location
Documentation: Patient complains of upper back pain.
Coding consideration: Do not independently interpret “upper back” as thoracic spine pain. Review the provider’s assessment for additional anatomical or diagnostic specificity.
Thoracic Pain With an Underlying Diagnosis
Thoracic pain can occur as a symptom of another condition. The presence of pain does not necessarily mean M54.6 should be reported separately.
When No Definitive Condition Is Documented
If the provider documents thoracic spine pain without establishing an underlying condition, M54.6 may be appropriate when symptom coding is supported.
When an Underlying Condition Is Documented
If the provider establishes a condition that explains the thoracic pain, review the complete encounter and applicable coding guidelines. Do not automatically report M54.6 in addition to every underlying diagnosis.
Symptom vs. Specific Diagnosis
| Documentation | Coding Consideration |
| Thoracic spine pain with no definitive underlying condition | M54.6 may apply |
| Thoracic radiculopathy | M54.14 |
| Thoracic spondylosis | Review applicable M47.814 code |
| Thoracic pain due to intervertebral disc disorder | Review applicable M51.- code |
| Back pain with no documented location | Review M54.9 and the complete record |
| Suspected condition without provider diagnosis | Do not independently code it as confirmed |
Common Thoracic Pain ICD-10 Coding Mistakes
- Assuming All Back Pain Is Thoracic Pain
- Using M54.6 for Unspecified Back Pain
- Ignoring a More Specific Diagnosis
- Missing the M54.6 Excludes1 Instruction
- Coding From the Chief Complaint Only
- Assuming Upper Back Means Thoracic Spine
- Choosing a Code Without Reviewing the Tabular List
Thoracic Pain ICD-10: A Quick Reference
| Question | Answer |
| What is the thoracic pain ICD-10 code? | M54.6 |
| What is the thoracic back pain ICD-10 code? | M54.6 when thoracic spine pain is documented |
| What is the thoracic spine pain ICD-10 code? | M54.6 |
| What is M54.6? | Pain in thoracic spine |
| What is the ICD-10 code for thoracic radiculopathy? | M54.14 |
| What is the code for unspecified dorsalgia? | M54.9 |
| Does M54.6 apply to every type of back pain? | No |
| Can upper back pain automatically be coded M54.6? | No |
| Does M54.6 have an Excludes1 instruction? | Yes |
| What should be reviewed when thoracic pain is due to an intervertebral disc disorder? | Applicable M51.- code |
Conclusion
The thoracic pain ICD-10 code is M54.6, Pain in thoracic spine. The code is appropriate when provider documentation supports pain specifically involving the thoracic spine and no more specific diagnosis changes the coding approach.
Accurate thoracic pain coding requires more than identifying the correct code from a keyword. Coders should confirm the anatomical location, provider’s final assessment, underlying diagnoses, and applicable Tabular List instructions.
In particular, review the M54.6 Excludes1 instruction when thoracic spine pain is documented as being due to an intervertebral disc disorder. When a more specific diagnosis such as thoracic radiculopathy or a disc disorder is established, the appropriate diagnosis code should be evaluated instead of automatically reporting M54.6.
FAQs
What is the thoracic pain ICD-10 code?
The ICD-10-CM code for pain in the thoracic spine is M54.6. It may be appropriate when the provider documents thoracic spine pain and no more specific diagnosis changes the coding approach.
What is the ICD-10 code for thoracic back pain?
M54.6, Pain in thoracic spine, may be used when the provider’s documentation establishes that the back pain is located in the thoracic spine.
Is M54.6 a billable ICD-10-CM code?
Yes. M54.6 is a specific ICD-10-CM code for pain in the thoracic spine. Always verify the code’s validity for the applicable date of service and follow payer-specific requirements.
What is the ICD-10 code for thoracic radiculopathy?
The ICD-10-CM code for radiculopathy, thoracic region, is M54.14. It should not be substituted with M54.6 when the provider specifically documents thoracic radiculopathy.
Can M54.6 be used when thoracic pain is caused by a disc disorder?
The M54.6 Excludes1 instruction applies to pain in the thoracic spine due to intervertebral disc disorder. When the documentation establishes this relationship, review the applicable M51.- code instead of assigning M54.6 for that condition.
Should M54.6 be reported with an underlying diagnosis?
Not automatically. Review the complete encounter and applicable ICD-10-CM guidelines to determine whether the symptom is separately reportable.
