Z13.818 — Encounter for screening for other digestive system disorders
Is Z13.818 billable?
Yes — Z13.818 is billable for FY2027. Z13.818 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. Z13.818 may be submitted for encounters from October 1, 2026 through September 30, 2027.
Z13.818 at a glance
| Code | Z13.818 |
|---|---|
| Description | Encounter for screening for other digestive system disorders |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
What Medicare edits apply to Z13.818?
The Medicare Code Editor screens inpatient claims before they are grouped. These edits name Z13.818 directly.
CMS will reject this code as the principal diagnosis on an inpatient claim. It describes something other than the condition chiefly responsible for the admission.
Which MS-DRGs does Z13.818 group to?
Z13.818 sits in MDC 23 and helps define the logic of 1 MS-DRG (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 951Other Factors Influencing Health Statusmedical
How is Z13.818 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to Z13.818. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Screening › gastrointestinal condition (for)
- Screening › disease or disorder › digestive tract NEC (for)
Excludes1 — never code together — inherited from Z13
The conditions below can never be reported together with Z13.818 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- encounter for diagnostic examination-code to sign or symptom
Excludes2 — not included here — inherited from Z00-Z13
The conditions below are not part of Z13.818, but a patient may have both at the same time. When documentation supports it, Z13.818 and the excluded code may both be reported.
Excludes2 — not included here — inherited from Z13.8
The conditions below are not part of Z13.818, but a patient may have both at the same time. When documentation supports it, Z13.818 and the excluded code may both be reported.
- screening for malignant neoplasms (Z12.-)
How long has Z13.818 existed?
Z13.818 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.