T22.69 ICD-10-CM Code: Corrosion of second degree of multiple sites of shoulder and upper limb, except wrist and hand

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for T22.69 in the official ICD-10-CM tabular list, quoted as published.

Notes without a marker are published on T22.69 itself; “inherited from” names the category or block whose note applies here.

7th Character Guide

"The appropriate 7th character is to be added to each code from category T22"

• A — initial encounter
• D — subsequent encounter
• S — sequela

How the encounter character is assigned. “Initial encounter” means the patient is receiving active treatment for the condition — it is not limited to the first visit, and a different or new provider giving active treatment still assigns it. “Subsequent encounter” covers care during the healing or recovery phase after active treatment. “Sequela” is for complications or conditions that arise as a direct result of the original condition.

ICD-10-CM Official Guidelines for Coding and Reporting, Section I.C.19.a (paraphrased by MedCoder).

Variant codes in this family

T22.691A, T22.691D, T22.691S, T22.692A, T22.692D, T22.692S, T22.699A, T22.699D

Character meanings are CMS's official 7th-character extensions for this family, as carried in each variant code's official description; variant codes are registry rows. The explanation of how the encounter character is assigned is MedCoder editorial, distinct from the official content above it.

Do Not Confuse With

Codes named in T22.69's own official notes, or sharing its encounter family, with what separates them. Each links to the full comparison.

• T22.691A— Encounter relationship (Review)

  Same underlying diagnosis, different encounter phase.

  The same diagnosis at a different phase of care; one encounter takes one 7th character.

  Full comparison: T22.69 vs T22.691A →

• T22.691D— Encounter relationship (Review)

  Same underlying diagnosis, different encounter phase.

  The same diagnosis at a different phase of care; one encounter takes one 7th character.

  Full comparison: T22.69 vs T22.691D →

• T21— Excludes2 relationship (Informational)

  Distinct conditions — both may be reported.

  A distinct condition — both may be reported when both are documented.

  Full comparison: T22.69 vs T21 →

• T23— Excludes2 relationship (Informational)

  Distinct conditions — both may be reported.

  A distinct condition — both may be reported when both are documented.

  Full comparison: T22.69 vs T23 →

Relationships are read from this code's own official notes and its encounter family; the wording of each distinction is MedCoder editorial. Source: CMS ICD-10-CM tabular instructional notes; ICD-10-CM Official Guidelines, Section I.A.12.a.

Decision Points

The directives on this code's own record, as a pre-claim checklist.

1. A 7th character applies in this family. Confirm the documented encounter matches the character assigned. See the official 7th-character definitions and this code’s variants
2. Sequencing: 1 Code First instruction — the underlying condition is sequenced before this code when present. See the Code First notes
3. 2 Use Additional Code instructions — report the named additional code(s) when the documentation supports them. See the Use Additional Code notes
4. 2 Excludes2 entries — those conditions are not part of this code and may be reported additionally when documented. See the Excludes2 notes

Checklist rows are derived from this code's own official directives; the wording of each check is MedCoder editorial. The official notes themselves are in the sections each row links to.

Verify Before Coding

• Not billable as written — a more specific code is required: T22.691A, T22.691D, T22.691S, T22.692A, T22.692D.
• Requires a 7th character. "The appropriate 7th character is to be added to each code from category T22" Options: T22.691A, T22.691D, T22.691S, T22.692A, T22.692D, T22.692S

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim in Claim Check.

Relationships & Classification

Other codes that name T22.69 or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.

Referenced by 2 Excludes1 notes: T07 — Unspecified multiple injuries (via T22.-), T66 — Radiation sickness, unspecified (via T22.-).

These codes’ tabular lists mark this diagnosis as mutually exclusive — not reported together unless the conditions are documented as unrelated.

Referenced by 122 Excludes2 notes: S00 — Superficial injury of head (via T22.-), S00-S09 — Injuries to the head (S00-S09) (via T22.-), S01 — Open wound of head (via T22.-), S02 — Fracture of skull and facial bones (via T22.-), S03 — Dislocation and sprain of joints and ligaments of head (via T22.-), S04 — Injury of cranial nerve (via T22.-), S05 — Injury of eye and orbit (via T22.-), S06 — Intracranial injury (via T22.-), S07 — Crushing injury of head (via T22.-), S08 — Avulsion and traumatic amputation of part of head (via T22.-), S09 — Other and unspecified injuries of head (via T22.-), S10 — Superficial injury of neck (via T22.-), S10-S19 — Injuries to the neck (S10-S19) (via T22.-), S11 — Open wound of neck (via T22.-), S12 — Fracture of cervical vertebra and other parts of neck (via T22.-), S13 — Dislocation and sprain of joints and ligaments at neck level (via T22.-), S14 — Injury of nerves and spinal cord at neck level (via T22.-), S15 — Injury of blood vessels at neck level (via T22.-), S16 — Injury of muscle, fascia and tendon at neck level (via T22.-), S17 — Crushing injury of neck (via T22.-), +102 more.

These codes’ tabular lists name this diagnosis as distinct — both may be reported when both are documented.

Contextual Map

Every relationship of T22.69 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Run T22.69 with these 10 related codes in Claim Check

Hierarchy

• S00-T88 — Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) (S00-T88)[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026

Referenced by Excludes1 notes

• T07 — Unspecified multiple injuries[Excludes1](via T22.-): “burns and corrosions (T20-T32)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• T66 — Radiation sickness, unspecified[Excludes1](via T22.-): “burns (T20-T31)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026

Referenced by Excludes2 notes (122)

• S00 — Superficial injury of head[Excludes2](via T22.-): “burns and corrosions (T20-T32)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• S00-S09 — Injuries to the head (S00-S09)[Excludes2](via T22.-): “burns and corrosions (T20-T32)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• S01 — Open wound of head[Excludes2](via T22.-): “burns and corrosions (T20-T32)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• S02 — Fracture of skull and facial bones[Excludes2](via T22.-): “burns and corrosions (T20-T32)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• S03 — Dislocation and sprain of joints and ligaments of head[Excludes2](via T22.-): “burns and corrosions (T20-T32)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• S04 — Injury of cranial nerve[Excludes2](via T22.-): “burns and corrosions (T20-T32)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• S05 — Injury of eye and orbit[Excludes2](via T22.-): “burns and corrosions (T20-T32)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• S06 — Intracranial injury[Excludes2](via T22.-): “burns and corrosions (T20-T32)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• and 114 more

Nearest codes (40)

• T22 — Burn and corrosion of shoulder and upper limb, except wrist and hand[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• T22.652A — Corrosion of second degree of left shoulder, initial encounter[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• T22.652D — Corrosion of second degree of left shoulder, subsequent encounter[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• T22.652S — Corrosion of second degree of left shoulder, sequela[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• T22.659 — Corrosion of second degree of unspecified shoulder[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• T22.659A — Corrosion of second degree of unspecified shoulder, initial encounter[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• T22.659D — Corrosion of second degree of unspecified shoulder, subsequent encounter[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• T22.659S — Corrosion of second degree of unspecified shoulder, sequela[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• and 32 more

Change history

• FY2016 — In the code set at ICD-10-CM adoption [Change history]— CMS release files (code change ledger) · icd10cm-fy2016

Common coding questions

Sources for this page

Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.

Code, title, tabular notes and index terms Official source data

CMS/CDC ICD-10-CM FY2026 tabular list, index and tables, effective October 1, 2025 Release, file and checksum · Publisher’s page

Claim edits Official source data

CMS Definitions of Medicare Code Edits — v43.1 (April 2026) Release, file and checksum · Publisher’s page

Change history and date-of-service validity Official source data

CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page

Comparisons, relationships and the contextual map MedCoder structured relationship

Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears

Summary and FAQ answers MedCoder explanation

Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.

Labels on this page: Official source data · MedCoder structured relationship · MedCoder explanation. How to read the labels · All data sources and release dates

Nearest Codes in This Family

Official ICD-10-CM classifications closest to T22.69 in its code family, with their registry titles.

• T22.662S — Corrosion of second degree of left scapular region, sequela
• T22.669 — Corrosion of second degree of unspecified scapular region
• T22.669A — Corrosion of second degree of unspecified scapular region, initial encounter
• T22.669D — Corrosion of second degree of unspecified scapular region, subsequent encounter
• T22.669S — Corrosion of second degree of unspecified scapular region, sequela
• T22.691 — Corrosion of second degree of multiple sites of right shoulder and upper limb, except wrist and hand
• T22.691A — Corrosion of second degree of multiple sites of right shoulder and upper limb, except wrist and hand, initial encounter
• T22.691D — Corrosion of second degree of multiple sites of right shoulder and upper limb, except wrist and hand, subsequent encounter
• T22.691S — Corrosion of second degree of multiple sites of right shoulder and upper limb, except wrist and hand, sequela
• T22.692 — Corrosion of second degree of multiple sites of left shoulder and upper limb, except wrist and hand

View all codes in the T22 family