T44.4X4A ICD-10-CM Code: Poisoning by predominantly alpha-adrenoreceptor agonists, undetermined, initial encounter
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FY 2026 Apr update / Injury, poisoning and certain other consequences of external causes (S00-T88) / Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50)
T44.4X4A
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidancePoisoning by predominantly alpha-adrenoreceptor agonists, undetermined, initial encounter
Poisoning by predominantly alpha-adrenoreceptor agonists, undetermined, initial encounter
CMS-HCC V28
00
RAF 0
CMS-HCC V24
00
RAF 0
ACA/HHS
00
RAF 0
ESRD/PACE
00
RAF 0
RXHCC
00
RAF 0
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Code Book Path
Inclusion Terms
OfficialICD-10-CM does not list inclusion terms for T44.4X4A in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for T44.4X4A in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for T44.4X4A in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for T44.4X4A in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for T44.4X4A in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for T44.4X4A in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for T44.4X4A in this effective period.
Last updated: FY2026 ICD-10-CM Apr update, Apr 1, 2026 through Sep 30, 2026. CMS-HCC V28 is 100% phased in for payment year 2026.
Is T44.4X4A an HCC code?
No. T44.4X4A is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
T44.4X4A is the ICD-10-CM diagnosis code for poisoning by predominantly alpha-adrenoreceptor agonists, undetermined, initial encounter. T44.4X4A sits in the ICD-10-CM chapter for injury, poisoning and certain other consequences of external causes (s00-t88), within the section covering poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (t36-t50).
T44.4X4A is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
T44.4X4A is a billable ICD-10-CM code that can be reported on claims but does not currently contribute to a Medicare Advantage member's RAF score under any CMS risk adjustment model (V28, V24, ESRD, or RxHCC). Coders reviewing T44.4X4A should check whether additional documentation would support a more specific child code in the same hierarchy that does map to a payment HCC, capturing the correct specificity is the highest-impact RAF improvement available within accurate coding.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for T44.4X4A sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.