ICD-10-CM 2027
ICD-10 code for special examination
From the official ICD-10-CM alphabetic index entry “Examination (for) (following) (general) (of) (routine) › special”. Page updated September 29, 2026.
About coding special examination
The ICD-10-CM code for special examination is Z01.89 (Encounter for other specified special examinations). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on Z01.89.
Within Z01.8, choose Z01.89 (other specified special examinations) only when documentation doesn't support a more specific option: preprocedural examinations (Z01.81), allergy testing (Z01.82), blood typing (Z01.83) and antibody response examination (Z01.84).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 951 (Other Factors Influencing Health Status, relative weight 0.5577), in MDC 23 (Factors Influencing Health Status and Other Contacts with Health Services), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific special examination codes (official index)
- specified type NEC Z01.89 — Encounter for other specified special examinations
Common questions about special examination ICD-10 codes
What is the ICD-10 code for special examination?
- Z01.89 — Encounter for other specified special examinations. More specific codes apply when the documentation supports them: Z01.89.
Is Z01.89 billable?
- Yes. Z01.89 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z01.89 be used as a principal diagnosis?
- No. It is not acceptable as the principal diagnosis for an inpatient stay; it may be reported as a secondary diagnosis.
Is Z01.89 a CC or MCC?
- No. Z01.89 is neither a CC nor an MCC under MS-DRG v44.0.