T44
ICD-10Non-billable categoryDrugs primarily affecting the autonomic nervous system
Official ICD-10-CM descriptor (FY2026)
Poisoning by, adverse effect of and underdosing of drugs primarily affecting the autonomic nervous system
T44 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
7th character
- The appropriate 7th character is to be added to each code from category T44
Permitted 7th characters
| A | initial encounter |
| D | subsequent encounter |
| S | sequela |
More specific codes under T44
- T44.0Anticholinesterase agentscategory
- T44.1Parasympathomimeticscategory
- T44.2Ganglionic blocking drugscategory
- T44.3Parasympatholytics and spasmolyticscategory
- T44.4Predominantly alpha-adrenoreceptor agonistscategory
- T44.5Predominantly beta-adrenoreceptor agonistscategory
- T44.6Alpha-adrenoreceptor antagonistscategory
- T44.7Beta-adrenoreceptor antagonistscategory
- T44.8Centrally-acting and adrenergic-neuron- blocking agentscategory
- T44.9And unsp drugs aff the autonomic nervous systemcategory
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.