K90.2 vs Q43.8
K90.2 (Blind loop syndrome, not elsewhere classified) compared with Q43.8 (Other specified congenital malformations of intestine), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. K90.2 carries an Excludes1 note covering Q43.8: “congenital blind loop syndrome (Q43.8)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| K90.2Blind loop syndrome, not elsewhere classified | Q43.8Other specified congenital malformations of intestine | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | K00-K95 — Diseases of the Digestive System (K00-K95) | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) |
| Definition | Blind loop syndrome, not elsewhere classified is a billable ICD-10-CM diagnosis code (K90.2). | Other specified congenital malformations of intestine is a billable ICD-10-CM diagnosis code (Q43.8). |
| Includes | Blind loop syndrome NOS | Congenital blind loop syndrome Congenital diverticulitis, colon Congenital diverticulum, intestine Dolichocolon |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources