S88Not billable, use a more specific code below
Traumatic amputation of lower leg
In Injuries to the knee and lower leg (S80-S89), chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes
54 billable codes under S88: 18 are a CC; 18 map to HCC 405 (Traumatic Amputations and Complications).A CC or MCC (major CC) is a secondary diagnosis that raises the MS-DRG payment. An HCC counts toward a Medicare Advantage patient's risk score.
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Instructional notes
Includes: conditions that are coded here
- An amputation not identified as partial or complete should be coded to complete
Excludes1: not coded here, use a different code
- traumatic amputation of ankle and foot (S98.-)
Also applies, from Injuries to the knee and lower leg (S80-S89)
These notes sit on S80-S89 and apply to every code under it, including S88.
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Covers 7th character use and coding of injuries, fractures, burns, drug and toxic effects, abuse and neglect, and complications of care (S00-T88).
- Application of 7th Characters in Chapter 19 (page 77)
- Coding of Injuries (page 78)
- Coding of Traumatic Fractures (page 79)
- Coding of Burns and Corrosions (page 80)
- Adverse Effects, Poisoning, Underdosing and Toxic Effects (page 82)
- Adult and child abuse, neglect and other maltreatment (page 85)
- Complications of care (page 85)
All codes under S88
S88 can't be used on a claim. Pick a billable code below; grey headings group them.
- S88.0Traumatic amputation at knee level
- S88.01Complete traumatic amputation at knee level
- S88.011Complete traumatic amputation at knee level, right lower leg
- S88.011AComplete traumatic amputation at knee level, right lower leg, initial encounter
- S88.011DComplete traumatic amputation at knee level, right lower leg, subsequent encounter
- S88.011SComplete traumatic amputation at knee level, right lower leg, sequela
- S88.012Complete traumatic amputation at knee level, left lower leg
- S88.012AComplete traumatic amputation at knee level, left lower leg, initial encounter
- S88.012DComplete traumatic amputation at knee level, left lower leg, subsequent encounter
- S88.012SComplete traumatic amputation at knee level, left lower leg, sequela
- S88.019Complete traumatic amputation at knee level, unspecified lower leg
- S88.019AComplete traumatic amputation at knee level, unspecified lower leg, initial encounter
- S88.019DComplete traumatic amputation at knee level, unspecified lower leg, subsequent encounter
- S88.019SComplete traumatic amputation at knee level, unspecified lower leg, sequela
- S88.02Partial traumatic amputation at knee level
- S88.021Partial traumatic amputation at knee level, right lower leg
- S88.021APartial traumatic amputation at knee level, right lower leg, initial encounter
- S88.021DPartial traumatic amputation at knee level, right lower leg, subsequent encounter
- S88.021SPartial traumatic amputation at knee level, right lower leg, sequela
- S88.022Partial traumatic amputation at knee level, left lower leg
- S88.022APartial traumatic amputation at knee level, left lower leg, initial encounter
- S88.022DPartial traumatic amputation at knee level, left lower leg, subsequent encounter
- S88.022SPartial traumatic amputation at knee level, left lower leg, sequela
- S88.029Partial traumatic amputation at knee level, unspecified lower leg
- S88.029APartial traumatic amputation at knee level, unspecified lower leg, initial encounter
- S88.029DPartial traumatic amputation at knee level, unspecified lower leg, subsequent encounter
- S88.029SPartial traumatic amputation at knee level, unspecified lower leg, sequela
- S88.1Traumatic amputation at level between knee and ankle
- S88.11Complete traumatic amputation at level between knee and ankle
- S88.111Complete traumatic amputation at level between knee and ankle, right lower leg
- S88.111AComplete traumatic amputation at level between knee and ankle, right lower leg, initial encounter
- S88.111DComplete traumatic amputation at level between knee and ankle, right lower leg, subsequent encounter
- S88.111SComplete traumatic amputation at level between knee and ankle, right lower leg, sequela
- S88.112Complete traumatic amputation at level between knee and ankle, left lower leg
- S88.112AComplete traumatic amputation at level between knee and ankle, left lower leg, initial encounter
- S88.112DComplete traumatic amputation at level between knee and ankle, left lower leg, subsequent encounter
- S88.112SComplete traumatic amputation at level between knee and ankle, left lower leg, sequela
- S88.119Complete traumatic amputation at level between knee and ankle, unspecified lower leg
- S88.119AComplete traumatic amputation at level between knee and ankle, unspecified lower leg, initial encounter
- S88.119DComplete traumatic amputation at level between knee and ankle, unspecified lower leg, subsequent encounter
- S88.119SComplete traumatic amputation at level between knee and ankle, unspecified lower leg, sequela
- S88.12Partial traumatic amputation at level between knee and ankle
- S88.121Partial traumatic amputation at level between knee and ankle, right lower leg
- S88.121APartial traumatic amputation at level between knee and ankle, right lower leg, initial encounter
- S88.121DPartial traumatic amputation at level between knee and ankle, right lower leg, subsequent encounter
- S88.121SPartial traumatic amputation at level between knee and ankle, right lower leg, sequela
- S88.122Partial traumatic amputation at level between knee and ankle, left lower leg
- S88.122APartial traumatic amputation at level between knee and ankle, left lower leg, initial encounter
- S88.122DPartial traumatic amputation at level between knee and ankle, left lower leg, subsequent encounter
- S88.122SPartial traumatic amputation at level between knee and ankle, left lower leg, sequela
- S88.129Partial traumatic amputation at level between knee and ankle, unspecified lower leg
- S88.129APartial traumatic amputation at level between knee and ankle, unspecified lower leg, initial encounter
- S88.129DPartial traumatic amputation at level between knee and ankle, unspecified lower leg, subsequent encounter
- S88.129SPartial traumatic amputation at level between knee and ankle, unspecified lower leg, sequela
- S88.9Traumatic amputation of lower leg, level unspecified
- S88.91Complete traumatic amputation of lower leg, level unspecified
- S88.911Complete traumatic amputation of right lower leg, level unspecified
- S88.911AComplete traumatic amputation of right lower leg, level unspecified, initial encounter
- S88.911DComplete traumatic amputation of right lower leg, level unspecified, subsequent encounter
- S88.911SComplete traumatic amputation of right lower leg, level unspecified, sequela
- S88.912Complete traumatic amputation of left lower leg, level unspecified
- S88.912AComplete traumatic amputation of left lower leg, level unspecified, initial encounter
- S88.912DComplete traumatic amputation of left lower leg, level unspecified, subsequent encounter
- S88.912SComplete traumatic amputation of left lower leg, level unspecified, sequela
- S88.919Complete traumatic amputation of unspecified lower leg, level unspecified
- S88.919AComplete traumatic amputation of unspecified lower leg, level unspecified, initial encounter
- S88.919DComplete traumatic amputation of unspecified lower leg, level unspecified, subsequent encounter
- S88.919SComplete traumatic amputation of unspecified lower leg, level unspecified, sequela
- S88.92Partial traumatic amputation of lower leg, level unspecified
- S88.921Partial traumatic amputation of right lower leg, level unspecified
- S88.921APartial traumatic amputation of right lower leg, level unspecified, initial encounter
- S88.921DPartial traumatic amputation of right lower leg, level unspecified, subsequent encounter
- S88.921SPartial traumatic amputation of right lower leg, level unspecified, sequela
- S88.922Partial traumatic amputation of left lower leg, level unspecified
- S88.922APartial traumatic amputation of left lower leg, level unspecified, initial encounter
- S88.922DPartial traumatic amputation of left lower leg, level unspecified, subsequent encounter
- S88.922SPartial traumatic amputation of left lower leg, level unspecified, sequela
- S88.929Partial traumatic amputation of unspecified lower leg, level unspecified
- S88.929APartial traumatic amputation of unspecified lower leg, level unspecified, initial encounter
- S88.929DPartial traumatic amputation of unspecified lower leg, level unspecified, subsequent encounter
- S88.929SPartial traumatic amputation of unspecified lower leg, level unspecified, sequela
S88 MS-DRGs
As the principal diagnosis, the billable codes under S88 group to these 10 MS-DRGs (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.
- DRG 559 Aftercare, Musculoskeletal System and Connective Tissue with MCC (18 of 54 codes)
- DRG 560 Aftercare, Musculoskeletal System and Connective Tissue with CC (18 of 54 codes)
- DRG 561 Aftercare, Musculoskeletal System and Connective Tissue without CC/MCC (18 of 54 codes)
- DRG 913 Traumatic Injury with MCC (18 of 54 codes)
- DRG 914 Traumatic Injury without MCC (18 of 54 codes)
- DRG 949 Aftercare with CC/MCC (18 of 54 codes)
- DRG 950 Aftercare without CC/MCC (18 of 54 codes)
- DRG 963 Other Multiple Significant Trauma with MCC (18 of 54 codes)
- DRG 964 Other Multiple Significant Trauma with CC (18 of 54 codes)
- DRG 965 Other Multiple Significant Trauma without CC/MCC (18 of 54 codes)
Other codes that refer to S88
Notes on these codes point to S88.
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Limb Loss
People can lose all or part of an arm or leg for many reasons. Common ones include: Some amputees have phantom pain, which is the feeling of pain in the missing limb. Other physical problems include surgical complications and skin problems if you wear an artificial limb. Many amputees use an artificial limb. Learning how to use it takes time. Physical therapy can help you adapt.
Read more about limb loss on MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.