S20.1 is the authoritative medical code for Other and unspecified superficial injuries of breast. This classification is used in medical billing and clinical recording to specify the clinical criteria for other and unspecified superficial injuries of breast (ICD-10-CM S20.1), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Official Registry Overview & Definition
Other and unspecified superficial injuries of breast is a non-billable ICD-10-CM category code S20.1. A more specific billable subcode must be selected for claims submission. Includes: injuries of breast; injuries of chest wall; injuries of interscapular area. Excludes2 (not included here): burns and corrosions T20-T32; effects of foreign body in bronchus T17.5; effects of foreign body in esophagus T18.1; effects of foreign body in lung T17.8; effects of foreign body in trachea T17.4; frostbite T33-T34; injuries of axilla; injuries of clavicle; injuries of scapular region; injuries of shoulder; insect bite or sting, venomous T63.4. 7th character: The appropriate 7th character is to be added to each code from category S20.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for S20.1 in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- injuries of breast
- injuries of chest wall
- injuries of interscapular area
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- burns and corrosions T20-T32
- effects of foreign body in bronchus T17.5
- effects of foreign body in esophagus T18.1
- effects of foreign body in lung T17.8
- effects of foreign body in trachea T17.4
- frostbite T33-T34
- injuries of axilla
- injuries of clavicle
- injuries of scapular region
- injuries of shoulder
- insect bite or sting, venomous T63.4
Frequently Asked Questions (FAQ) & Clinical Guidance
Can S20.1 be billed directly?
No. S20.1 (Other and unspecified superficial injuries of breast) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Does S20.1 require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category S20.
Can S20.1 be reported alongside related conditions?
Per Excludes2 instructions, S20.1 and the following may both be reported when both are present: burns and corrosions (T20-T32); effects of foreign body in bronchus (T17.5); effects of foreign body in esophagus (T18.1); effects of foreign body in lung (T17.8).
Codes in This Family (40)
Official ICD-10-CM classifications in the same code family as S20.1, with their registry titles.
- S20.101 — Unspecified superficial injuries of breast, right breast
- S20.101A — Unspecified superficial injuries of breast, right breast, initial encounter
- S20.101D — Unspecified superficial injuries of breast, right breast, subsequent encounter
- S20.101S — Unspecified superficial injuries of breast, right breast, sequela
- S20.102 — Unspecified superficial injuries of breast, left breast
- S20.102A — Unspecified superficial injuries of breast, left breast, initial encounter
- S20.102D — Unspecified superficial injuries of breast, left breast, subsequent encounter
- S20.102S — Unspecified superficial injuries of breast, left breast, sequela
- S20.109 — Unspecified superficial injuries of breast, unspecified breast
- S20.109A — Unspecified superficial injuries of breast, unspecified breast, initial encounter
- S20.109D — Unspecified superficial injuries of breast, unspecified breast, subsequent encounter
- S20.109S — Unspecified superficial injuries of breast, unspecified breast, sequela
- S20.111 — Abrasion of breast, right breast
- S20.111A — Abrasion of breast, right breast, initial encounter
- S20.111D — Abrasion of breast, right breast, subsequent encounter
- S20.111S — Abrasion of breast, right breast, sequela
- S20.112 — Abrasion of breast, left breast
- S20.112A — Abrasion of breast, left breast, initial encounter
- S20.112D — Abrasion of breast, left breast, subsequent encounter
- S20.112S — Abrasion of breast, left breast, sequela
- S20.119 — Abrasion of breast, unspecified breast
- S20.119A — Abrasion of breast, unspecified breast, initial encounter
- S20.119D — Abrasion of breast, unspecified breast, subsequent encounter
- S20.119S — Abrasion of breast, unspecified breast, sequela
- S20.121 — Blister (nonthermal) of breast, right breast
- S20.121A — Blister (nonthermal) of breast, right breast, initial encounter
- S20.121D — Blister (nonthermal) of breast, right breast, subsequent encounter
- S20.121S — Blister (nonthermal) of breast, right breast, sequela
- S20.122 — Blister (nonthermal) of breast, left breast
- S20.122A — Blister (nonthermal) of breast, left breast, initial encounter
- S20.122D — Blister (nonthermal) of breast, left breast, subsequent encounter
- S20.122S — Blister (nonthermal) of breast, left breast, sequela
- S20.129 — Blister (nonthermal) of breast, unspecified breast
- S20.129A — Blister (nonthermal) of breast, unspecified breast, initial encounter
- S20.129D — Blister (nonthermal) of breast, unspecified breast, subsequent encounter
- S20.129S — Blister (nonthermal) of breast, unspecified breast, sequela
- S20.141 — External constriction of part of breast, right breast
- S20.141A — External constriction of part of breast, right breast, initial encounter
- S20.141D — External constriction of part of breast, right breast, subsequent encounter
- S20.141S — External constriction of part of breast, right breast, sequela
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code S21.1
Open wound of front wall of thorax without penetration into thoracic cavity