ICD-10-CM 2027
ICD-10 code for chromium compounds contact
Contact with and (suspected) exposure to other hazardous metals
From the official ICD-10-CM alphabetic index entry “Contact (with) › chromium compounds”. Page updated September 29, 2026.
About coding chromium compounds contact
The ICD-10-CM code for chromium compounds contact is Z77.018 (Contact with and (suspected) exposure to other hazardous metals).
Within Z77.01, choose Z77.018 (other hazardous metals) only when documentation doesn't support a more specific option: arsenic (Z77.010), lead (Z77.011), uranium (Z77.012) and gadolinium (Z77.013).
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.
Common questions about chromium compounds contact ICD-10 codes
What is the ICD-10 code for chromium compounds contact?
- Z77.018 — Contact with and (suspected) exposure to other hazardous metals.
Is Z77.018 billable?
- Yes. Z77.018 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z77.018 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 Z77.018 a CC or MCC?
- No. Z77.018 is neither a CC nor an MCC under MS-DRG v44.0.