ICD-10-CM 2027 diagnosis code
Z59.861Financial insecurity, difficulty paying for utilities
Z59.861 is a valid, billable ICD-10-CM code for financial insecurity, difficulty paying for utilities. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
Code last changed in FY2026 (effective October 1, 2025). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About Z59.861
Z59.861 is the ICD-10-CM diagnosis code for financial insecurity, difficulty paying for utilities. It belongs to category Z59 (problems related to housing and economic circumstances), block Z55-Z65 (persons with potential health hazards related to socioeconomic and psychosocial circumstances) 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 Z59.86 (financial insecurity), Z59.861 is specifically for financial insecurity, difficulty paying for utilities. Related codes cover other specified financial insecurity (Z59.868) and unspecified (Z59.869).
The conditions in its Excludes2 note aren't part of Z59.861, but may be coded alongside it if the patient has both: inadequate housing utilities (Z59.12).
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 FY2026, effective October 1, 2025.
Coding notes
- Difficulty paying for electricity
- Difficulty paying for heat
- Difficulty paying for oil
- Difficulty paying water bill
- Utility disconnect notice due to inability to pay
- inadequate housing utilities (Z59.12)
Notes that apply from higher levels
Instructions written at a parent level also apply to Z59.861.
› From Z59.86 Financial insecurity
› From Z59 Problems related to housing and economic circumstances
- problems related to upbringing (Z62.-)
Broader instructions also apply from Chapter 21: Factors influencing health status and contact with health services.
Alphabetic index entries
3 entriesTerms in the official ICD-10-CM index that lead to Z59.861.
Codes whose notes reference Z59.861
- Z59.12Excludes2
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
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2026 (effective 10/1/2025): Added
- No changes since FY2026.
Common questions about Z59.861
Is Z59.861 billable?
- Yes. Z59.861 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z59.861 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 Z59.861 a CC or MCC?
- No. Z59.861 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does Z59.861 group to?
- Z59.861 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.