Last updated October 18, 2026

Chest Tube Insertion Coding: 32551, 32556, 32557 | Coding Clarified

Medical Coding “Clarified” Chest Tube Insertion

By By Janine Mothershed

Chest Tube Insertion in ER

Medical Specialty:  Emergency Room Reports 

Description: Chest tube insertion done by two physicians in the ER – spontaneous pneumothorax secondary to barometric trauma.  

PREOPERATIVE DIAGNOSES:
1. Right spontaneous pneumothorax secondary to barometric trauma.
2. Respiratory failure.
3. Pneumonia with sepsis.

POSTOPERATIVE DIAGNOSES:
1. Right spontaneous pneumothorax secondary to barometric trauma.
2. Respiratory failure.
3. Pneumonia with sepsis. 

INFORMED CONSENT: Not obtained. This patient is obtunded, intubated, and septic. This is an emergent procedure with a 2-physician emergency consent signed and on the chart.

PROCEDURE: The patient’s right chest was prepped and draped in sterile fashion. The site of insertion was anesthetized with 1% Xylocaine, and an incision was made. Blunt dissection was carried out 2 intercostal spaces above the initial incision site. The chest wall was opened, and a 32-French chest tube was placed into the thoracic cavity, after examination with the finger, making sure that the thoracic cavity had been entered correctly. The chest tube was placed.

A postoperative chest x-ray is pending at this time.

The patient tolerated the procedure well and was taken to the recovery room in stable condition.

ESTIMATED BLOOD LOSS: 10 mL 

COMPLICATIONS: None.

SPONGE COUNT: Correct x2. \

Chest Tube Insertion in the Emergency Room

Scenario Summary

A patient presents to the Emergency Room with a right spontaneous pneumothorax secondary to barometric trauma. In addition, the patient is critically ill with respiratory failure and pneumonia with sepsis.

Because the patient is obtunded and intubated, the physicians perform an emergency chest tube insertion (tube thoracostomy) to remove air from the thoracic cavity

Key Procedure in the Note

Specifically, the operative note documents:

  • right chest prepped and draped

  • local anesthetic used

  • incision made

  • blunt dissection

  • The chest wall opened

  • 32-French chest tube placed into the thoracic cavity

As a result, these details support an open chest tube insertion, not a simple needle aspiration.

CPT Coding

32551 — Tube thoracostomy (includes connection to drainage system), open

Rationale

In particular, the operative note describes:

  • Incision made in the chest

  • Blunt dissection performed

  • Entry into the thoracic cavity

  • Placement of a 32 French chest tube

Therefore, these steps describe an open chest tube insertion, which coders report with CPT 32551.

Key Documentation Supporting the Code

  • Incision made

  • Blunt dissection

  • Thoracic cavity entered

  • Chest tube placed

Also, these elements confirm open thoracostomy, not a percutaneous procedure.

ICD-10-CM Diagnosis Coding

Primary Diagnosis

J93.83 — Other pneumothorax

Rationale

In this case, the operative report documents:

“Right spontaneous pneumothorax secondary to barometric trauma.”

Because the documentation does not specify tension pneumothorax or traumatic pneumothorax, the safest supported code is J93.83. For comparison, tension pneumothorax is J93.0. In addition, primary spontaneous pneumothorax is J93.11, and secondary spontaneous pneumothorax (due to underlying lung disease) is J93.12. Therefore, query the provider if the type is unclear.

Additional Diagnoses

T70.8XXA — Other effects of air pressure and water pressure, initial encounter

Rationale

The provider documents the pneumothorax as secondary to barometric trauma, so coders assign a T70 category code.

A41.9 — Sepsis, unspecified organism

Rationale

The documentation states pneumonia with sepsis, but it does not identify the organism.

Coding guideline:
When sepsis is documented without a specified organism, assign A41.9.

J18.9 — Pneumonia, unspecified organism

Rationale

The note confirms pneumonia but does not document the causative organism.

J96.90 — Respiratory failure, unspecified

Rationale

However, the documentation simply states respiratory failure without specifying:

  • Acute

  • Chronic

  • Hypoxic

  • Hypercapnic

Therefore, assign the unspecified respiratory failure code.

2026 ICD-10-CM Guidelines PDF 

HCPCS Coding

None supported by this documentation

CPT 32551 fully reports the procedure performed. Also, the note documents no separate HCPCS supply or medication codes.

Final Code Summary

CPT

32551
Open chest tube insertion (tube thoracostomy)

ICD-10-CM

J93.83 — Other pneumothorax
T70.8XXA — Other effects of air pressure and water pressure, initial encounter
A41.9 — Sepsis, unspecified organism
J18.9 — Pneumonia, unspecified organism
J96.90 — Respiratory failure, unspecified

HCPCS

None

Why No HCPCS Code?

There is no separately supported HCPCS Level II code in this note.

Do not separately code:

  • chest tube supply

  • Xylocaine/local anesthetic

  • prep and drape

  • sponge count

  • estimated blood loss

  • pending chest x-ray

  • emergency consent

Instead, these items are either bundled, incidental, or not separately billable from the documentation provided.

Sequencing Tips

For example, a reasonable diagnosis sequence would be:

  1. J93.83 — Other pneumothorax

  2. T70.8XXA — Barometric trauma

  3. A41.9 — Sepsis

  4. J18.9 — Pneumonia

  5. J96.90 — Respiratory failure

Why the pneumothorax may be listed first here

This procedure note focuses on the reason for the chest tube insertion, which is the right spontaneous pneumothorax. As a result, for procedural reporting, that is the diagnosis most directly tied to the CPT procedure.

Important inpatient/outpatient teaching point

If you are coding a full hospital claim, final sequencing can depend on:

  • The main reason for admission

  • whether the encounter is ED only, observation, or inpatient

  • official facility coding rules (for example, when sepsis is present on admission, A41.9 is sequenced before the localized infection)

So for procedure-to-diagnosis linking, pneumothorax is the key diagnosis here.

Query Opportunity

Watch for possible severe sepsis

For instance, the record documents:

  • sepsis

  • respiratory failure

  • pneumonia

But it does not clearly say the respiratory failure is due to the sepsis. The FY 2026 ICD-10-CM guidelines say coders should not assign severe sepsis unless the acute organ dysfunction is associated with the sepsis. In addition, some cases require a provider query.

Query example:

“Can the respiratory failure be clinically linked to the documented sepsis?”

If the provider confirms the relationship, coding may change.

Student tip:
Do not automatically code severe sepsis just because sepsis and organ dysfunction both appear in the chart.

Modifier Tip: Two Physicians

The note says two physicians performed the procedure. However, that alone is not enough to report a modifier like:

  • 62 co-surgeons

  • 80/81/82 assistant surgeon

Instead, you would need clear documentation of each physician’s role, and payer rules must support it.

Student tip:
Never assign a two-surgeon or assistant modifier just because two doctors are mentioned.

Important Student Coding Tips

Tip 1

For chest tube procedures, look carefully for words like:

  • incision

  • blunt dissection

  • The chest wall opened

Those support an open thoracostomy code

Always determine whether a chest tube insertion is open or percutaneous.

In contrast, open procedures involve:

  • incision

  • blunt dissection

  • direct entry into the thoracic cavity

Therefore, this supports CPT 32551.

Tip 2

Do not code a more specific pneumothorax or respiratory failure type unless documented.

Always code the underlying cause when documented.

Here, the pneumothorax occurred due to barometric trauma, which is why coders add T70.8XXA.

Tip 3

When the provider documents both sepsis and pneumonia, remember:

  • sepsis code first

  • localized infection next

Follow the sepsis coding guidelines carefully.

Do not assume severe sepsis without a documented link between sepsis and organ dysfunction.

The documentation states pneumonia with sepsis, so code both conditions.

If the provider had documented severe sepsis, an additional R65.2 code would be required: R65.20 for severe sepsis without septic shock or R65.21 for severe sepsis with septic shock. In that case, sequence the systemic infection code (A41.9) first, then R65.2x, then the localized infection and organ dysfunction codes.

Tip 4

Never assume specificity that is not documented.

For example:

In this case, the documentation does NOT specify:

  • acute respiratory failure

  • organism causing pneumonia

  • organism causing sepsis

Therefore, unspecified codes must be used.

How to Approach a Long Medical Coding Exam Scenario 

Medical Coding Respiratory Failure 

Abstracting from the EHR 

Medical Coding OP Reports 

Medical Coding How to Query 

 

Ready to become a certified medical coder? Our online CPC certification training prepares you for the AAPC CPC exam with a credentialed instructor. Many students train at little or no cost through medical coding scholarships and WIOA grants available in 30+ states.

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