ICD-10-CM 2027 diagnosis code
Z53.31Laparoscopic surgical procedure converted to open procedure
Z53.31 is a valid, billable ICD-10-CM code for laparoscopic surgical procedure converted to open procedure. 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 Z53.31
Z53.31 is the ICD-10-CM diagnosis code for laparoscopic surgical procedure converted to open procedure. It belongs to category Z53 (persons encountering health services for specific procedures and treatment, not carried out), block Z40-Z53 (Encounters for other specific health care) 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 Z53.3 (procedure converted to open procedure), Z53.31 is specifically for laparoscopic surgical procedure converted to open procedure. Related codes cover thoracoscopic surgical procedure converted to open procedure (Z53.32), Arthroscopic surgical procedure converted to open procedure (Z53.33) and other specified procedure converted to open procedure (Z53.39).
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 V64.41 (laparoscopic surgical procedure converted to open procedure).
Notes that apply from higher levels
Instructions written at a parent level also apply to Z53.31.
Broader instructions also apply from Z40-Z53 Encounters for other specific health care and Chapter 21: Factors influencing health status and contact with health services.
Alphabetic index entries
1 entriesTerms in the official ICD-10-CM index that lead to Z53.31.
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 →- V64.41Laparoscopic surgical procedure converted to open procedureexact
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 Z53.31
Is Z53.31 billable?
- Yes. Z53.31 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z53.31 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 Z53.31 a CC or MCC?
- No. Z53.31 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does Z53.31 group to?
- Z53.31 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.