ICD-10-CM 2027 diagnosis code
Z91.841Risk for dental caries, low
Z91.841 is a valid, billable ICD-10-CM code for risk for dental caries, low. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
Code last changed in FY2018 (effective October 1, 2017). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About Z91.841
Z91.841 is the ICD-10-CM diagnosis code for risk for dental caries, low. It belongs to category Z91 (personal risk factors, not elsewhere classified), 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 Z91.84 (oral health risk factors), Z91.841 is specifically for risk for dental caries, low. Related codes cover risk for dental caries, moderate (Z91.842), risk for dental caries, high (Z91.843) and unspecified risk for dental caries (Z91.849).
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 FY2018, effective October 1, 2017.
Before ICD-10, this condition was coded in ICD-9-CM as V15.89 (other specified personal history presenting hazards to health).
Notes that apply from higher levels
Instructions written at a parent level also apply to Z91.841.
› From Z91 Personal risk factors, not elsewhere classified
Broader instructions also apply from 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.
Alphabetic index entries
2 entriesTerms in the official ICD-10-CM index that lead to Z91.841.
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 →- V15.89Other specified personal history presenting hazards to healthapproximate
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
- FY2018 (effective 10/1/2017): Added
- No changes since FY2018.
Common questions about Z91.841
Is Z91.841 billable?
- Yes. Z91.841 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z91.841 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 Z91.841 a CC or MCC?
- No. Z91.841 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does Z91.841 group to?
- Z91.841 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.