T26.31XA
Burns of other specified parts of right eye and adnexa, initial encounter
T26.31XA (also written T2631XA) is a billable ICD-10-CM diagnosis code for burns of other specified parts of right eye and adnexa, initial encounter. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 90 codes in category T26 (Burn and corrosion confined to eye and adnexa). Its 7th character, A, means initial encounter. Its coding notes include a Use additional code instruction and 2 Excludes2 entries.
7th character
Category T26 requires a 7th character. T26.31 has only 5 characters, so a placeholder X fills the 6th position.
Guidelines tips
From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.
The 7th character depends on whether the patient is in active treatment, not on who sees the patient. An aftercare Z code is not used for injury aftercare.
Late effects of burns are coded with 7th character S, and a current burn and a sequela of an old burn can be coded together. An external cause code is used with burns.
Use additional code
Add the listed code as a secondary code, if known.
- external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)
Also from chapter/block level (1 note)
- code to identify any retained foreign body, if applicable (Z18.-)
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (2 notes)
- birth trauma (P10-P15)
- obstetric trauma (O70-O71)
Care settings
How CMS programs treat this code. These are CMS claim edits and list entries, not coverage or eligibility rules.
Home Health Primary
Accepted as the primary (principal) diagnosis on a home health claim. The Home Health Grouper assigns it to the MMTA - Other clinical group.
Source: CMS Home Health Grouper Software v07.2.26, effective October 1, 2026Notes
Also from chapter/block level (2 notes)
- Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
- The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.