ICD-10-CM 2027
ICD-10 code for lead contact
From the official ICD-10-CM alphabetic index entry “Contact (with) › lead”. Page updated September 29, 2026.
About coding lead contact
The ICD-10-CM code for lead contact is Z77.011 (Contact with and (suspected) exposure to lead).
Within Z77.01 (contact with and (suspected) exposure to hazardous metals), Z77.011 is specifically for contact with and (suspected) exposure to lead. Related codes cover arsenic (Z77.010), uranium (Z77.012), gadolinium (Z77.013) and other hazardous metals (Z77.018).
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 lead contact ICD-10 codes
What is the ICD-10 code for lead contact?
- Z77.011 — Contact with and (suspected) exposure to lead.
Is Z77.011 billable?
- Yes. Z77.011 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z77.011 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 Z77.011 a CC or MCC?
- No. Z77.011 is neither a CC nor an MCC under MS-DRG v44.0.