ICD-10-CM 2027 diagnosis code
M65.269Calcific tendinitis, unspecified lower leg
M65.269 is a valid, billable ICD-10-CM code for calcific tendinitis, unspecified lower leg. 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 M65.269
M65.269 is the ICD-10-CM diagnosis code for Calcific tendinitis, unspecified lower leg. It belongs to category M65 (synovitis and tenosynovitis), block M65-M67 (disorders of synovium and tendon) 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 M65.26, choose M65.269 (unspecified lower leg) only when documentation doesn't support a more specific option: right lower leg (M65.261) and left lower leg (M65.262).
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 557 (Tendonitis, Myositis and Bursitis with MCC, relative weight 1.489) and DRG 558 (Tendonitis, Myositis and Bursitis without MCC, relative weight 0.8875), 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 727.82 (calcium deposits in tendon and bursa).
Notes that apply from higher levels
Instructions written at a parent level also apply to M65.269.
› From M65.2 Calcific tendinitis
Broader instructions also apply from 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.
MDC 08 · Diseases and Disorders of the Musculoskeletal System and Connective Tissue
ICD-9-CM equivalent
Converter →- 727.82Calcium deposits in tendon and bursaapproximate
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
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about M65.269
Is M65.269 billable?
- Yes. M65.269 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M65.269 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M65.269 as a principal diagnosis.
Is M65.269 a CC or MCC?
- No. M65.269 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does M65.269 group to?
- M65.269 is used in the MS-DRG v44.0 logic for MS-DRG 557 (Tendonitis, Myositis and Bursitis with MCC) and MS-DRG 558 (Tendonitis, Myositis and Bursitis without 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 M65.269?
- The CMS General Equivalence Mappings map M65.269 to ICD-9-CM 727.82.