T21.7
Non-billable

Corrosion of third degree of trunk

Chapter 19: Injury, poisoning and certain other consequences of external causes

Code First

1 item

•
(T51-T65) to identify chemical and intent

Use Additional Code

1 item

•
external cause code to identify place (Y92)

Coding Guidance

T21.7 should not be used for reimbursement purposes as there are more specific codes below it that contain a greater level of detail. See Related Codes to drill down to more specific billable codes for appropriate reimbursement.

Additional Information from Parent Codes

The following information may apply to this code from its parent codes in the ICD-10 hierarchy. This information is important for proper coding and classification.

Parent Codes Referenced:

S00-T88(Chapter 19)T21(Burn and corrosion of trunk)

Includes

1 item

From T21:

•
burns and corrosion of hip region

Excludes1

2 items

From S00-T88:

•
birth trauma (P10-P15)
•
obstetric trauma (O70-O71)

Excludes2

3 items

From T21:

•
burns and corrosion of axilla (T22.- with fifth character 4)
•
burns and corrosion of scapular region (T22.- with fifth character 6)
•
burns and corrosion of shoulder (T22.- with fifth character 5)

Use Additional Code

1 item

From S00-T88:

•
code to identify any retained foreign body, if applicable (Z18.-)

7th Character Notes

4 items

From T21:

•
The appropriate 7th character is to be added to each code from category T21
•
A: initial encounter
•
D: subsequent encounter
•
S: sequela

T21.7
Non-billable

Corrosion of third degree of trunk

Code First

Use Additional Code

Coding Guidance

Additional Information from Parent Codes

Parent Codes Referenced:

Includes

From T21:

Excludes1

From S00-T88:

Excludes2

From T21:

Use Additional Code

From S00-T88:

7th Character Notes

From T21:

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T21.7Non-billable

Corrosion of third degree of trunk

Code First

Use Additional Code

Coding Guidance

Additional Information from Parent Codes

Parent Codes Referenced:

Includes

From T21:

Excludes1

From S00-T88:

Excludes2

From T21:

Use Additional Code

From S00-T88:

7th Character Notes

From T21:

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Built by Freed

Helpful Links

T21.7
Non-billable

We build tools for
clinician happiness.