Z85.238 — Personal history of other malignant neoplasm of thymus
Is Z85.238 billable?
Yes — Z85.238 is billable for FY2027. Z85.238 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. Z85.238 may be submitted for encounters from October 1, 2026 through September 30, 2027.
Z85.238 at a glance
| Code | Z85.238 |
|---|---|
| Description | Personal history of other malignant neoplasm of thymus |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
What Medicare edits apply to Z85.238?
The Medicare Code Editor screens inpatient claims before they are grouped. These edits name Z85.238 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 Z85.238 group to?
Z85.238 sits in MDC 17 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 826Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures with MCCsurgical
- 827Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures with CCsurgical
- 828Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures without CC/MCCsurgical
How is Z85.238 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to Z85.238. They show the wording a clinician may have documented, which often differs from the Tabular description.
- History › personal › malignant neoplasm › thymus NEC
Inclusion terms
Alternative wording in documentation that is classified to Z85.238.
- Conditions classifiable to C37
Code first — inherited from Z85
The underlying condition below must be sequenced before Z85.238. Z85.238 describes a manifestation and cannot be the principal or first-listed diagnosis.
- any follow-up examination after treatment of malignant neoplasm (Z08)
Use additional code — inherited from Z85
Report an additional code alongside Z85.238 to fully describe the condition. Z85.238 is sequenced first.
Excludes2 — not included here — inherited from Z85
The conditions below are not part of Z85.238, but a patient may have both at the same time. When documentation supports it, Z85.238 and the excluded code may both be reported.
Code also — inherited from Z77-Z99
Two codes may be needed to describe the condition fully. Whether Z85.238 is sequenced first depends on the reason for the encounter.
- any follow-up examination (Z08-Z09)
How long has Z85.238 existed?
Z85.238 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.