S44.3 is the authoritative medical code for Injury of axillary nerve. This classification is used in medical billing and clinical recording to specify the clinical criteria for injury of axillary nerve (ICD-10-CM S44.3), 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
Injury of axillary nerve is a non-billable ICD-10-CM category code S44.3. A more specific billable subcode must be selected for claims submission. Includes: injuries of axilla; injuries of scapular region. Excludes2 (not included here): injury of brachial plexus S14.3-; burns and corrosions T20-T32; frostbite T33-T34; injuries of elbow S50-S59; insect bite or sting, venomous T63.4. Code also: any associated open wound S41.-. 7th character: The appropriate 7th character is to be added to each code from category S44.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for S44.3 in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- injuries of axilla
- injuries of scapular region
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- injury of brachial plexus S14.3-
- burns and corrosions T20-T32
- frostbite T33-T34
- injuries of elbow S50-S59
- insect bite or sting, venomous T63.4
Code Also
Additional codes that may be required to fully describe the encounter.
- any associated open wound S41.-
Frequently Asked Questions (FAQ) & Clinical Guidance
Can S44.3 be billed directly?
No. S44.3 (Injury of axillary nerve) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Does S44.3 require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category S44.
Can S44.3 be reported alongside related conditions?
Per Excludes2 instructions, S44.3 and the following may both be reported when both are present: injury of brachial plexus (S14.3-); burns and corrosions (T20-T32); frostbite (T33-T34); injuries of elbow (S50-S59).
Codes in This Family (40)
Official ICD-10-CM classifications in the same code family as S44.3, with their registry titles.
- S44 — Injury of nerves at shoulder and upper arm level
- S44.0 — Injury of ulnar nerve at upper arm level
- S44.00 — Injury of ulnar nerve at upper arm level, unspecified arm
- S44.00A — Injury of ulnar nerve at upper arm level, unspecified arm, initial encounter
- S44.00D — Injury of ulnar nerve at upper arm level, unspecified arm, subsequent encounter
- S44.00S — Injury of ulnar nerve at upper arm level, unspecified arm, sequela
- S44.00XA — Injury of ulnar nerve at upper arm level, unspecified arm, initial encounter
- S44.00XD — Injury of ulnar nerve at upper arm level, unspecified arm, subsequent encounter
- S44.00XS — Injury of ulnar nerve at upper arm level, unspecified arm, sequela
- S44.01 — Injury of ulnar nerve at upper arm level, right arm
- S44.01A — Injury of ulnar nerve at upper arm level, right arm, initial encounter
- S44.01D — Injury of ulnar nerve at upper arm level, right arm, subsequent encounter
- S44.01S — Injury of ulnar nerve at upper arm level, right arm, sequela
- S44.01XA — Injury of ulnar nerve at upper arm level, right arm, initial encounter
- S44.01XD — Injury of ulnar nerve at upper arm level, right arm, subsequent encounter
- S44.01XS — Injury of ulnar nerve at upper arm level, right arm, sequela
- S44.02 — Injury of ulnar nerve at upper arm level, left arm
- S44.02A — Injury of ulnar nerve at upper arm level, left arm, initial encounter
- S44.02D — Injury of ulnar nerve at upper arm level, left arm, subsequent encounter
- S44.02S — Injury of ulnar nerve at upper arm level, left arm, sequela
- S44.02XA — Injury of ulnar nerve at upper arm level, left arm, initial encounter
- S44.02XD — Injury of ulnar nerve at upper arm level, left arm, subsequent encounter
- S44.02XS — Injury of ulnar nerve at upper arm level, left arm, sequela
- S44.1 — Injury of median nerve at upper arm level
- S44.10 — Injury of median nerve at upper arm level, unspecified arm
- S44.10A — Injury of median nerve at upper arm level, unspecified arm, initial encounter
- S44.10D — Injury of median nerve at upper arm level, unspecified arm, subsequent encounter
- S44.10S — Injury of median nerve at upper arm level, unspecified arm, sequela
- S44.10XA — Injury of median nerve at upper arm level, unspecified arm, initial encounter
- S44.10XD — Injury of median nerve at upper arm level, unspecified arm, subsequent encounter
- S44.10XS — Injury of median nerve at upper arm level, unspecified arm, sequela
- S44.11 — Injury of median nerve at upper arm level, right arm
- S44.11A — Injury of median nerve at upper arm level, right arm, initial encounter
- S44.11D — Injury of median nerve at upper arm level, right arm, subsequent encounter
- S44.11S — Injury of median nerve at upper arm level, right arm, sequela
- S44.11XA — Injury of median nerve at upper arm level, right arm, initial encounter
- S44.11XD — Injury of median nerve at upper arm level, right arm, subsequent encounter
- S44.11XS — Injury of median nerve at upper arm level, right arm, sequela
- S44.12 — Injury of median nerve at upper arm level, left arm
- S44.12A — Injury of median nerve at upper arm level, left arm, initial encounter
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 S43.3
Subluxation and dislocation of other and unspecified parts of shoulder girdle
ICD Code S45.3
Injury of superficial vein at shoulder and upper arm level