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ICD-10-CM 2027 diagnosis code

M89.167Partial physeal arrest, left distal tibia

✓ Billable / specific

M89.167 is a valid, billable ICD-10-CM code for partial physeal arrest, left distal tibia. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About M89.167

M89.167 is the ICD-10-CM diagnosis code for partial physeal arrest, left distal tibia. It belongs to category M89 (other disorders of bone), block M86-M90 (other osteopathies) and chapter 13 (diseases of the musculoskeletal system and connective tissue). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within M89.16 (physeal arrest, lower leg), M89.167 is specifically for partial physeal arrest, left distal tibia. Related codes cover complete physeal arrest, right proximal tibia (M89.160), complete physeal arrest, left proximal tibia (M89.161), partial physeal arrest, right proximal tibia (M89.162), partial physeal arrest, left proximal tibia (M89.163), complete physeal arrest, right distal tibia (M89.164), complete physeal arrest, left distal tibia (M89.165), partial physeal arrest, right distal tibia (M89.166), other physeal arrest of lower leg (M89.168) and 1 more.

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 564 (Other Musculoskeletal System and Connective Tissue Diagnoses with MCC, relative weight 1.4908), DRG 565 (Other Musculoskeletal System and Connective Tissue Diagnoses with CC, relative weight 0.9783) and DRG 566 (Other Musculoskeletal System and Connective Tissue Diagnoses without CC/MCC, relative weight 0.7378), in MDC 08 (Diseases and Disorders of the Musculoskeletal System and Connective Tissue), 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 has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 733.91 (arrest of bone development or growth).

Notes that apply from higher levels

Instructions written at a parent level also apply to M89.167.

Broader instructions also apply from M86-M90 Other osteopathies and Chapter 13: Diseases of the musculoskeletal system and connective tissue.

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.

ICD-9-CM equivalent

Converter →
  • 733.91Arrest of bone development or growthapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about M89.167

Is M89.167 billable?

Yes. M89.167 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can M89.167 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict M89.167 as a principal diagnosis.

Is M89.167 a CC or MCC?

No. M89.167 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does M89.167 group to?

M89.167 is used in the MS-DRG v44.0 logic for MS-DRG 564 (Other Musculoskeletal System and Connective Tissue Diagnoses with MCC), MS-DRG 565 (Other Musculoskeletal System and Connective Tissue Diagnoses with CC) and MS-DRG 566 (Other Musculoskeletal System and Connective Tissue Diagnoses without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for M89.167?

The CMS General Equivalence Mappings map M89.167 to ICD-9-CM 733.91.