FY2027 ICD-10-CM reference
K28: Gastrojejunal ulcer
By the HCC Buddy Coding Team
The official ICD-10-CM descriptor is Gastrojejunal ulcer. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Nonbillable heading. Verified against the official FY2027 order file.
CMS-HCC V28
Not applicable to this nonbillable heading
CMS-HCC V24
Not applicable to this nonbillable heading
ESRD
Not applicable to this nonbillable heading
PACE
Not applicable to this nonbillable heading
RxHCC
Not applicable to this nonbillable heading
HHS-HCC
Not applicable to this nonbillable heading
More specific FY2027 codes
- K28.0: Acute gastrojejunal ulcer with hemorrhageBillable code
- K28.1: Acute gastrojejunal ulcer with perforationBillable code
- K28.2: Acute gastrojejunal ulcer with both hemorrhage and perforationBillable code
- K28.3: Acute gastrojejunal ulcer without hemorrhage or perforationBillable code
- K28.4: Chronic or unspecified gastrojejunal ulcer with hemorrhageBillable code
- K28.5: Chronic or unspecified gastrojejunal ulcer with perforationBillable code
- K28.6: Chronic or unspecified gastrojejunal ulcer with both hemorrhage and perforationBillable code
- K28.7: Chronic gastrojejunal ulcer without hemorrhage or perforationBillable code
- K28.9: Gastrojejunal ulcer, unspecified as acute or chronic, without hemorrhage or perforationBillable code
FY2027 Tabular instructions
Instructions below include applicable chapter, section and parent-code notes. Each note identifies where it appears in the official source.
Excludes2
certain conditions originating in the perinatal period (P04-P96)
Source: K00-K95 (chapter, inherited).
Excludes2
certain infectious and parasitic diseases (A00-B99)
Source: K00-K95 (chapter, inherited).
Excludes2
complications of pregnancy, childbirth and the puerperium (O00-O9A)
Source: K00-K95 (chapter, inherited).
Excludes2
congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
Source: K00-K95 (chapter, inherited).
Excludes2
endocrine, nutritional and metabolic diseases (E00-E88)
Source: K00-K95 (chapter, inherited).
Excludes2
injury, poisoning and certain other consequences of external causes (S00-T88)
Source: K00-K95 (chapter, inherited).
Excludes2
neoplasms (C00-D49)
Source: K00-K95 (chapter, inherited).
Excludes2
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Source: K00-K95 (chapter, inherited).
Excludes2
hiatus hernia (K44.-)
Source: K20-K31 (section, inherited).
Includes
anastomotic ulcer (peptic) or erosion
Source: K28 (category, direct).
Includes
gastrocolic ulcer (peptic) or erosion
Source: K28 (category, direct).
Includes
gastrointestinal ulcer (peptic) or erosion
Source: K28 (category, direct).
Includes
gastrojejunal ulcer (peptic) or erosion
Source: K28 (category, direct).
Includes
jejunal ulcer (peptic) or erosion
Source: K28 (category, direct).
Includes
marginal ulcer (peptic) or erosion
Source: K28 (category, direct).
Includes
stomal ulcer (peptic) or erosion
Source: K28 (category, direct).
Instructional note
code to identify:
Source: K28 (category, direct).
Instructional note
alcohol abuse and dependence (F10.-)
Source: K28 (category, direct).
Excludes1
primary ulcer of small intestine (K63.3)
Source: K28 (category, direct).
Compare the FY2027 additions, removals and billable-status changes
What does K28 mean in FY2027?
The official ICD-10-CM descriptor is Gastrojejunal ulcer. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Is K28 billable in FY2027?
The FY2027 order file marks K28 as a nonbillable heading. Select a complete billable child code.
Does K28 map to an HCC?
Risk-model mapping is not applicable to this nonbillable heading. Check a complete billable child code.
Source: CMS FY2027 ICD-10-CM order file. Payment model: CMS CY 2027 Rate Announcement. Read the FY2027 Official Guidelines.
Review the FY2026 April edition