2019 ICD-10-CM Diagnosis Code T65.823S

Toxic effect of harmful algae and algae toxins, assault, sequela

    2016 2017 2018 2019 Billable/Specific Code POA Exempt
  • T65.823S is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Toxic effect of harmful algae and algae toxins, asslt, sqla
  • The 2019 edition of ICD-10-CM T65.823S became effective on October 1, 2018.
  • This is the American ICD-10-CM version of T65.823S - other international versions of ICD-10 T65.823S may differ.
The following code(s) above T65.823S contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to T65.823S:
  • S00-T88
    2019 ICD-10-CM Range S00-T88

    Injury, poisoning and certain other consequences of external causes

    Note
    • Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
    Type 1 Excludes
    Use Additional
    • code to identify any retained foreign body, if applicable (Z18.-)
    Injury, poisoning and certain other consequences of external causes
  • T51-T65
    2019 ICD-10-CM Range T51-T65

    Toxic effects of substances chiefly nonmedicinal as to source

    Note
    • When no intent is indicated code to accidental. Undetermined intent is only for use when there is specific documentation in the record that the intent of the toxic effect cannot be determined.
    Type 1 Excludes
    • contact with and (suspected) exposure to toxic substances (Z77.-)
    Use Additional
    • code(s):
    • for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70)
    • personal history of foreign body fully removed (Z87.821)
    • to identify any retained foreign body, if applicable (Z18.-)
    Toxic effects of substances chiefly nonmedicinal as to source
  • T65.82
    ICD-10-CM Diagnosis Code T65.82

    Toxic effect of harmful algae and algae toxins

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Applicable To
    • Toxic effect of (harmful) algae bloom NOS
    • Toxic effect of blue-green algae bloom
    • Toxic effect of brown tide
    • Toxic effect of cyanobacteria bloom
    • Toxic effect of Florida red tide
    • Toxic effect of pfiesteria piscicida
    • Toxic effect of red tide
    Toxic effect of harmful algae and algae toxins
Present On Admission
POA Help
"Present On Admission" is defined as present at the time the order for inpatient admission occurs — conditions that develop during an outpatient encounter, including emergency department, observation, or outpatient surgery, are considered POA.
  • T65.823S is considered exempt from POA reporting.
ICD-10-CM T65.823S is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):
  • 922 Other injury, poisoning and toxic effect diagnoses with mcc
  • 923 Other injury, poisoning and toxic effect diagnoses without mcc

Convert T65.823S to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
ICD-10-CM Codes Adjacent To T65.823S
T65.821A …… initial encounter
T65.821D …… subsequent encounter
T65.821S …… sequela
T65.822 Toxic effect of harmful algae and algae toxins, intentional self-harm
T65.822A …… initial encounter
T65.822D …… subsequent encounter
T65.822S …… sequela
T65.823 Toxic effect of harmful algae and algae toxins, assault
T65.823A …… initial encounter
T65.823D …… subsequent encounter
T65.823S …… sequela
T65.824 Toxic effect of harmful algae and algae toxins, undetermined
T65.824A …… initial encounter
T65.824D …… subsequent encounter
T65.824S …… sequela
T65.83 Toxic effect of fiberglass
T65.831 Toxic effect of fiberglass, accidental (unintentional)
T65.831A …… initial encounter
T65.831D …… subsequent encounter
T65.831S …… sequela
T65.832 Toxic effect of fiberglass, intentional self-harm

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.