T21.21 Burn of second degree of chest wall

Non-billable ICD-10-CM code.

Applicable to

• Burn of second degree of breast

Applies from T21 Burn and corrosion of trunk

Includes

• burns and corrosion of hip region

Excludes2 (not included here)

• 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)

7th character note

• The appropriate 7th character is to be added to each code from category T21

7th character required

• A — initial encounter
• D — subsequent encounter
• S — sequela

Applies from T21.2 Burn of second degree of trunk

Use additional code

• external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

Code annotations containing back-references to T21.21

Back-references to T21

• Type 2 Excludes: T22 Burn and corrosion of shoulder and upper limb, except wrist and hand ("burn and corrosion of interscapular region (T21.-)")
• Type 2 Excludes: T24 Burn and corrosion of lower limb, except ankle and foot ("burn and corrosion of hip region (T21.-)")
• Type 1 Excludes: T66 Radiation sickness, unspecified ("burns (T20-T31)")
• Type 2 Excludes: T67 Effects of heat and light ("burns (T20-T31)")
• Type 2 Excludes: T75 Other and unspecified effects of other external causes ("burns (electric) (T20-T31)")

Diagnosis Index entries for T21.21

• Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal) › chest wall › second degree

Nearby codes

• T21.2 Burn of second degree of trunk
• T21.20 Burn of second degree of trunk, unspecified site
• T21.20XA Burn of second degree of trunk, unspecified site, initial encounter
• T21.20XD Burn of second degree of trunk, unspecified site, subsequent encounter
• T21.20XS Burn of second degree of trunk, unspecified site, sequela
• T21.21 Burn of second degree of chest wall (this code)
• T21.21XA Burn of second degree of chest wall, initial encounter
• T21.21XD Burn of second degree of chest wall, subsequent encounter
• T21.21XS Burn of second degree of chest wall, sequela
• T21.22 Burn of second degree of abdominal wall
• T21.22XA Burn of second degree of abdominal wall, initial encounter