ICD-10-CM 2027 diagnosis code
Y07.45Grandchild, perpetrator of maltreatment and neglect
Y07.45 is a valid, billable ICD-10-CM code for grandchild, perpetrator of maltreatment and neglect. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
Code last changed in FY2023 (effective October 1, 2022). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About Y07.45
Y07.45 is the ICD-10-CM diagnosis code for Grandchild, perpetrator of maltreatment and neglect. It belongs to category Y07 (perpetrator of assault, maltreatment and neglect), block X92-Y09 (assault) and chapter 20 (external causes of morbidity). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within Y07.4 (other family member, perpetrator of maltreatment and neglect), Y07.45 is specifically for Grandchild, perpetrator of maltreatment and neglect. Related codes cover sibling, perpetrator of maltreatment and neglect (Y07.41), foster parent, perpetrator of maltreatment and neglect (Y07.42), Stepparent or stepsibling, perpetrator of maltreatment and neglect (Y07.43), child, perpetrator of maltreatment and neglect (Y07.44), grandparent, perpetrator of maltreatment and neglect (Y07.46), parental sibling, perpetrator of maltreatment and neglect (Y07.47) and other family member, perpetrator of maltreatment and neglect (Y07.49).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
It is exempt from present-on-admission (POA) reporting, so no POA indicator is required.
It was added in FY2023, effective October 1, 2022.
Coding notes
- Adopted grandchild, perpetrator of maltreatment and neglect
- Biological grandchild, perpetrator of maltreatment and neglect
- Foster grandchild, perpetrator of maltreatment and neglect
- Granddaughter, perpetrator of maltreatment and neglect
- Grandson, perpetrator of maltreatment and neglect
- In-law grandchild, perpetrator of maltreatment and neglect
- Non-binary grandchild, perpetrator of maltreatment and neglect
- Step grandchild, perpetrator of maltreatment and neglect
Notes that apply from higher levels
Instructions written at a parent level also apply to Y07.45.
› From Y07 Perpetrator of assault, maltreatment and neglect
- Codes from this category are for use only in cases of confirmed abuse (T74.-)
- Selection of the correct perpetrator code is based on the relationship between the perpetrator and the victim
- perpetrator of abandonment
- perpetrator of emotional neglect
- perpetrator of mental cruelty
- perpetrator of physical abuse
- perpetrator of physical neglect
- perpetrator of sexual abuse
- perpetrator of torture
- perpetrator of verbal abuse
Broader instructions also apply from X92-Y09 Assault and Chapter 20: External causes of morbidity.
Alphabetic index entries
4 entriesTerms in the official ICD-10-CM index that lead to Y07.45.
- Perpetrator, perpetration, of assault, maltreatment and neglect (by) › grandchild (adopted) (biological) (foster) (in-law) (step)
- Perpetrator, perpetration, of assault, maltreatment and neglect (by) › granddaughter (adopted) (biological) (foster) (in-law) (step)
- Perpetrator, perpetration, of assault, maltreatment and neglect (by) › grandson (adopted) (biological) (foster) (in-law) (step)
- Perpetrator, perpetration, of assault, maltreatment and neglect (by) › non-binary › grandchild (adopted) (biological) (foster) (in-law) (step)
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2023 (effective 10/1/2022): Added
- No changes since FY2023.
Common questions about Y07.45
Is Y07.45 billable?
- Yes. Y07.45 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Y07.45 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict Y07.45 as a principal diagnosis.
Is Y07.45 a CC or MCC?
- No. Y07.45 is neither a CC nor an MCC under MS-DRG v44.0.