T87.0X2
BillableComplications of reattached (part of) left upper extremity
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is T87.0X2 an HCC code?
Yes. T87.0X2 maps to Traumatic Amputations and Complications under the CMS-HCC V28 risk adjustment model (and Traumatic Amputations and Complications 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 T87.0X2
For T87.0X2 to 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 T87.0X2 during that encounter — not just copy-forwarded from a problem list.
What This Code Means
T87.0X2 is the ICD-10-CM diagnosis code for complications of reattached (part of) left upper extremity. Problems or complications that occur after a left arm or hand (or part of it) has been surgically reattached following amputation or traumatic loss. T87.0X2 sits in the ICD-10-CM chapter for injury, poisoning and certain other consequences of external causes (s00-t88), within the section covering complications of surgical and medical care, not elsewhere classified (t80-t88).
Under the CMS-HCC V28 risk adjustment model, T87.0X2 maps to Traumatic Amputations and Complications (HCC 405) with a community, non-dual, aged base RAF weight of 0.000. Under the older V24 model, T87.0X2 mapped to the same category but with a base RAF weight of 0.350 — 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.
The 'X' in the code structure allows for additional characters; verify the complete code with the fifth character for specific complication type. Because T87.0X2 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 T87.0X2 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •The 'X' in the code structure allows for additional characters; verify the complete code with the fifth character for specific complication type
- •Distinguish between right and left side complications for accurate laterality documentation
Clinical Significance
Complications of reattached left upper extremity represent serious problems following surgical reattachment that may compromise limb viability or function. These complications require prompt recognition and intervention to preserve the reattached limb.
Documentation Requirements
- ✓History of traumatic amputation and reattachment surgery
- ✓Specific nature of complications (vascular, infectious, neurologic)
- ✓Left upper extremity laterality documentation
- ✓Physical examination findings
- ✓Functional status of reattached limb
- ✓Imaging or diagnostic study results if applicable
- ✓Treatment interventions being provided
- ✓Provider assessment linking complications to reattachment
Commonly Confused Codes
- •T87.0X1 — complications of reattached right upper extremity (left vs right)
- •T87.0X9 — complications of reattached unspecified upper extremity (specified vs unspecified)
- •Z89.12 — acquired absence of left hand (complication vs amputation status)
- •T87.32 — neuroma of amputation stump, left upper extremity (reattachment vs amputation)
- •S68.112A — complete traumatic amputation left hand (acute vs complication)