DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

S44 Injury of nerves at shoulder and upper arm level

  • Header · not billable
  • Codes take a 7th character

S44 is not billable. The category heads 72 billable codes in FY2027, grouped under 8 subdivisions. Its codes take a 7th character, so none is complete with fewer than 7 characters.

Index → code

  • Injurynerve NECaxillary → S44.3-
  • Injurynerve NECarm (upper) → S44.9-
  • Injurynerve NECmusculocutaneous → S44.4-

Where it sits

  1. Chapter 19 Injury, poisoning and certain other consequences of external causes (S00-T88)
  2. S40-S49 Injuries to the shoulder and upper arm (S40-S49)
  3. S44 Injury of nerves at shoulder and upper arm level
Billable codes
72
Subdivisions
8
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
8

Codes in S44

  1. S44.0
    Injury of ulnar nerve at upper arm level
    Header
    Excludes1 1

    Excludes1

    • ulnar nerve NOS (S54.0) S54.0
  2. S44.00
    Injury of ulnar nerve at upper arm level, unspecified arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  3. S44.01
    Injury of ulnar nerve at upper arm level, right arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  4. S44.02
    Injury of ulnar nerve at upper arm level, left arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  5. S44.1
    Injury of median nerve at upper arm level
    Header
    Excludes1 1

    Excludes1

    • median nerve NOS (S54.1) S54.1
  6. S44.10
    Injury of median nerve at upper arm level, unspecified arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  7. S44.11
    Injury of median nerve at upper arm level, right arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  8. S44.12
    Injury of median nerve at upper arm level, left arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  9. S44.2
    Injury of radial nerve at upper arm level
    Header
    Excludes1 1

    Excludes1

    • radial nerve NOS (S54.2) S54.2
  10. S44.20
    Injury of radial nerve at upper arm level, unspecified arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  11. S44.21
    Injury of radial nerve at upper arm level, right arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  12. S44.22
    Injury of radial nerve at upper arm level, left arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  13. S44.3
    Injury of axillary nerve
    Header
  14. S44.30
    Injury of axillary nerve, unspecified arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  15. S44.31
    Injury of axillary nerve, right arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  16. S44.32
    Injury of axillary nerve, left arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  17. S44.4
    Injury of musculocutaneous nerve
    Header
  18. S44.40
    Injury of musculocutaneous nerve, unspecified arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  19. S44.41
    Injury of musculocutaneous nerve, right arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  20. S44.42
    Injury of musculocutaneous nerve, left arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  21. S44.5
    Injury of cutaneous sensory nerve at shoulder and upper arm level
    Header
  22. S44.50
    Injury of cutaneous sensory nerve at shoulder and upper arm level, unspecified arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  23. S44.51
    Injury of cutaneous sensory nerve at shoulder and upper arm level, right arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  24. S44.52
    Injury of cutaneous sensory nerve at shoulder and upper arm level, left arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  25. S44.8
    Injury of other nerves at shoulder and upper arm level
    Header
  26. S44.8X
    Injury of other nerves at shoulder and upper arm level
    Header
  27. S44.8X1
    Injury of other nerves at shoulder and upper arm level, right arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  28. S44.8X2
    Injury of other nerves at shoulder and upper arm level, left arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  29. S44.8X9
    Injury of other nerves at shoulder and upper arm level, unspecified arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  30. S44.9
    Injury of unspecified nerve at shoulder and upper arm level
    Header
  31. S44.90
    Injury of unspecified nerve at shoulder and upper arm level, unspecified arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  32. S44.91
    Injury of unspecified nerve at shoulder and upper arm level, right arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  33. S44.92
    Injury of unspecified nerve at shoulder and upper arm level, left arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters

Sources of each column. Rows marked +7th need a 7th character: pick one to build the full code; its code card has its own flags.

Instructions

At S44

Excludes2

  • injury of brachial plexus (S14.3-) S14.3

Code also

  • any associated open wound (S41.-) S41

Notes that also apply

Block S40-S49 instructions (Includes 2, Excludes2 4): printed on the block page.

Chapter 19 instructions (Notes 2, Excludes2 2, Use additional code 1): printed on the chapter 19 page.

7th characters

7th characters for S44 defined here

The appropriate 7th character is to be added to each code from category S44

7th characters for S44
7thMeaning (NCHS)
Ainitial encounter
Dsubsequent encounter
Ssequela

A code that takes a 7th character is invalid without it; the placeholder X fills a code shorter than 6 characters (Official Guidelines I.A.5). How 7th characters work.

Index entries

  • Injurynerve NECaxillary → S44.3-
  • Injurynerve NECmusculocutaneous → S44.4-
  • Injurynerve NECarm (upper) → S44.9-
  • Injurynerve NECulnar (forearm level)arm (upper) (level) → S44.0-
  • Injurynerve NECmedian (forearm level)upper arm (level) → S44.1-
  • Injurynerve NECradial (forearm level)upper arm (level) → S44.2-
  • Injurynerve NECcutaneous sensoryarm (upper) (level) → S44.5-
  • Injurynerve NECarm (upper)specified site NEC → S44.8

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy