M02.141
BillablePostdysenteric arthropathy, right hand
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is M02.141 an HCC code?
Yes. M02.141 maps to Bone/Joint/Muscle Infections/Necrosis under the CMS-HCC V28 risk adjustment model (and Bone/Joint/Muscle Infections/Necrosis under V24).
HCC Category Mapping
RAF weights shown are the community, non-dual, aged base weights from the CMS risk adjustment model file. Actual per-patient RAF contribution depends on member segment, interactions, and the model year used by the payer. V28 is the CMS-HCC model phased in over payment years 2024–2026; V24 remains in use during the transition and for historical data.
MEAT Criteria for M02.141
For M02.141to count as a valid HCC diagnosis in a given encounter, the provider's documentation must show MEAT: Monitor, Evaluate, Assess, or Treat. A diagnosis from a prior year does not carry forward automatically — it has to be re-documented and supported each calendar year.
- MMonitor: signs, symptoms, disease progression, or lab trending documented in the note
- EEvaluate: test results, medication response, or physical findings reviewed by the provider
- AAssess: explicit mention in the assessment or plan with acknowledgment of status
- TTreat: medication, referral, procedure, therapy, or counseling tied to the diagnosis
Only one of M/E/A/T is required to support the code, but the documentation must be specific enough to show that the provider actually addressed M02.141 during that encounter — not just copy-forwarded from a problem list.
What This Code Means
M02.141 is the ICD-10-CM diagnosis code for postdysenteric arthropathy, right hand. Joint inflammation and pain in the right hand that develops after a dysentery infection (severe diarrheal illness). M02.141 sits in the ICD-10-CM chapter for diseases of the musculoskeletal system and connective tissue (m00-m99), within the section covering infectious arthropathies (m00-m02).
Under the CMS-HCC V28 risk adjustment model, M02.141 maps to Bone/Joint/Muscle Infections/Necrosis (HCC 92) with a community, non-dual, aged base RAF weight of 0.209. Under the older V24 model, M02.141 mapped to the same category but with a base RAF weight of 0.482 — V28 recalibrated weights across the entire model. V28 is the CMS-HCC risk adjustment model that reached 100% phase-in for payment year 2026, replacing V24 which was used during the PY2024–PY2025 transition.
Verify documentation confirms postdysenteric arthropathy and specifically identifies the right hand as the affected site. Because M02.141 maps to a payment HCC, the provider's documentation must satisfy MEAT criteria (Monitor, Evaluate, Assess, or Treat) for the encounter to count toward the patient's Medicare Advantage risk adjustment score. When documentation is ambiguous, coders should issue a provider query rather than assume the highest-specificity variant.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for M02.141 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Verify documentation confirms postdysenteric arthropathy and specifically identifies the right hand as the affected site
- •Ensure the dysentery infection has been documented in the patient's history, as this is a reactive arthropathy following infection
Clinical Significance
This diagnosis identifies postdysenteric arthropathy specifically affecting the right hand, representing a reactive arthritis that significantly impacts fine motor function and activities of daily living. The condition requires chronic management due to its post-infectious inflammatory nature and potential for functional disability.
Documentation Requirements
- ✓History of dysentery or severe infectious diarrheal illness
- ✓Right hand joint involvement specifically documented
- ✓Clinical evidence of arthropathy affecting hand structures
- ✓Temporal relationship between dysentery and hand arthritis
- ✓Chronic or ongoing nature of joint inflammation
- ✓Functional impact on hand use and dexterity
- ✓Physical findings consistent with inflammatory arthropathy
Commonly Confused Codes
- •M02.142 — Postdysenteric arthropathy, left hand (opposite laterality)
- •M02.149 — Postdysenteric arthropathy, unspecified hand (when side not specified)
- •M02.131 — Postdysenteric arthropathy, right wrist (different anatomical site)
- •M00.041 — Staphylococcal arthritis, right hand (direct infection, not reactive)
- •M07.641 — Enteropathic arthropathy, right hand (different infectious arthropathy type)