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ICD-10-CM 2027 diagnosis code

T52.822Toxic effect of cycloparaffins, intentional self-harm

Not billable — use a more specific codeNew for 2027Requires 7th character

T52.822 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it and add the required 7th character.

Code last changed in FY2027 (effective October 1, 2026). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About T52.822

T52.822 is the ICD-10-CM diagnosis code for toxic effect of cycloparaffins, intentional self-harm. It belongs to category T52 (toxic effect of organic solvents), block T51-T65 (toxic effects of substances chiefly nonmedicinal as to source) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within T52.82 (toxic effects of cycloparaffins), T52.822 is specifically for toxic effect of cycloparaffins, intentional self-harm. Related codes cover accidental (unintentional) (T52.821), assault (T52.823) and undetermined (T52.824).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

It was added in FY2027, effective October 1, 2026.

7th character

The appropriate 7th character is to be added to each code from category T52

Notes that apply from higher levels

Instructions written at a parent level also apply to T52.822.

› From T52 Toxic effect of organic solvents
Excludes1
  • halogen derivatives of aliphatic and aromatic hydrocarbons (T53.-)

Broader instructions also apply from T51-T65 Toxic effects of substances chiefly nonmedicinal as to source and Chapter 19: Injury, poisoning and certain other consequences of external causes.

Table of Drugs & Neoplasms entries

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2027 (effective 10/1/2026): Added

Common questions about T52.822

Is T52.822 billable?

No. T52.822 is a header code. Report one of its more specific subcodes instead.

Did T52.822 change for 2027?

Yes. For FY2027 (effective October 1, 2026) it was added to the code set.