T21.22XS — Burn of second degree of abdominal wall, sequela

Billable

Is T21.22XS billable?

Yes — T21.22XS is billable for FY2027. T21.22XS is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. T21.22XS may be submitted for encounters from October 1, 2026 through September 30, 2027.

T21.22XS at a glance

Code	T21.22XS
Description	Burn of second degree of abdominal wall, sequela
Billable	Yes
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027
7th character "S"	sequela

What does the 7th character "S" mean in T21.22XS?

In T21.22XS, the 7th character S means sequela. The 7th character is required for T21.22XS to be a valid, complete code.

Same condition, different episode of care — switch the 7th character:

Which MS-DRGs does T21.22XS group to?

T21.22XS sits in MDC 09 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

604Trauma to the Skin, Subcutaneous Tissue and Breast with MCCmedical
605Trauma to the Skin, Subcutaneous Tissue and Breast without MCCmedical

How is T21.22XS listed in the Alphabetic Index?

The Alphabetic Index lists these routes under T21.22, the nearest indexed parent of T21.22XS. Use them to find the family, then select the specific code.

Burn › abdomen, abdominal › second degree (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)

Inclusion terms

Alternative wording in documentation that is classified to T21.22XS.

Burn of second degree of flank
Burn of second degree of groin

Use additional code — inherited from Chapter 19

Report an additional code alongside T21.22XS to fully describe the condition. T21.22XS is sequenced first.

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

Use additional code — inherited from T20-T25

Report an additional code alongside T21.22XS to fully describe the condition. T21.22XS is sequenced first.

code from category T31 or T32 to identify extent of body surface involved

Use additional code — inherited from T21.2

Report an additional code alongside T21.22XS to fully describe the condition. T21.22XS is sequenced first.

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

Excludes2 — not included here — inherited from Chapter 19

The conditions below are not part of T21.22XS, but a patient may have both at the same time. When documentation supports it, T21.22XS and the excluded code may both be reported.

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

Excludes2 — not included here — inherited from T21

The conditions below are not part of T21.22XS, but a patient may have both at the same time. When documentation supports it, T21.22XS and the excluded code may both be reported.

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)

How long has T21.22XS existed?

T21.22XS has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.