ICD-10-CM 2027 diagnosis code
Z84.82Family history of sudden infant death syndrome
Z84.82 is a valid, billable ICD-10-CM code for family history of sudden infant death syndrome. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
Code last changed in FY2017 (effective October 1, 2016). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About Z84.82
Z84.82 is the ICD-10-CM diagnosis code for family history of sudden infant death syndrome. It belongs to category Z84 (family history of other conditions), block Z77-Z99 (persons with potential health hazards related to family and personal history and certain conditions influencing health status) and chapter 21 (factors influencing health status and contact with health services). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within Z84.8 (family history of other specified conditions), Z84.82 is specifically for family history of sudden infant death syndrome. Related codes cover carrier of genetic disease (Z84.81) and other specified conditions (Z84.89).
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.
It is not acceptable as the principal diagnosis for an inpatient stay; it may be reported as a secondary diagnosis.
It is exempt from present-on-admission (POA) reporting, so no POA indicator is required.
It was added in FY2017, effective October 1, 2016.
Before ICD-10, this condition was coded in ICD-9-CM as V18.9 (family history of genetic disease carrier).
Coding notes
- Family history of SIDS
Notes that apply from higher levels
Instructions written at a parent level also apply to Z84.82.
Alphabetic index entries
2 entriesTerms in the official ICD-10-CM index that lead to Z84.82.
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 23 · Factors Influencing Health Status and Other Contacts with Health Services
ICD-9-CM equivalent
Converter →- V18.9Family history of genetic disease carrierapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2017 (effective 10/1/2016): Added
- No changes since FY2017.
Common questions about Z84.82
Is Z84.82 billable?
- Yes. Z84.82 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z84.82 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 Z84.82 a CC or MCC?
- No. Z84.82 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does Z84.82 group to?
- Z84.82 is used in the MS-DRG v44.0 logic for MS-DRG 951 (Other Factors Influencing Health Status). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.