ICD-10-CM 2027 diagnosis code
M05.151Rheumatoid lung disease with rheumatoid arthritis of right hip
M05.151 is a valid, billable ICD-10-CM code for rheumatoid lung disease with rheumatoid arthritis of right hip. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Rheumatoid lung disease w rheumatoid arthritis of right hip
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 M05.151
M05.151 is the ICD-10-CM diagnosis code for rheumatoid lung disease with rheumatoid arthritis of right hip. It belongs to category M05 (rheumatoid arthritis with rheumatoid factor), block M05-M14 (inflammatory polyarthropathies) 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 M05.15 (rheumatoid lung disease with rheumatoid arthritis of hip), M05.151 is specifically for rheumatoid lung disease with rheumatoid arthritis of right hip. Related codes cover left hip (M05.152) and unspecified hip (M05.159).
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 196 (Interstitial Lung Disease with MCC, relative weight 1.8336), DRG 197 (Interstitial Lung Disease with CC, relative weight 0.9492) and DRG 198 (Interstitial Lung Disease without CC/MCC, relative weight 0.7259), in MDC 04 (Diseases and Disorders of the Respiratory System), 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 714.81 (rheumatoid lung).
Notes that apply from higher levels
Instructions written at a parent level also apply to M05.151.
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 04 · Diseases and Disorders of the Respiratory System
ICD-9-CM equivalent
Converter →- 714.81Rheumatoid lungapproximate
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 M05.151
Is M05.151 billable?
- Yes. M05.151 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M05.151 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M05.151 as a principal diagnosis.
Is M05.151 a CC or MCC?
- No. M05.151 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does M05.151 group to?
- M05.151 is used in the MS-DRG v44.0 logic for MS-DRG 196 (Interstitial Lung Disease with MCC), MS-DRG 197 (Interstitial Lung Disease with CC) and MS-DRG 198 (Interstitial Lung Disease 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 M05.151?
- The CMS General Equivalence Mappings map M05.151 to ICD-9-CM 714.81.